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  1. Table of Contents
  2. Intro
  3. Design
    1. Stand
    2. Back
    3. Borders
    4. Thickness
    5. Temperature
    6. Build Quality
  4. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Gray Uniformity
    6. Viewing Angle
    7. Black Uniformity
    8. Gradient
    9. Pre Calibration
    10. Post Calibration
    11. 480p Input
    12. 720p Input
    13. 1080p Input
    14. 4k Input
    15. Color Gamut
    16. Color Volume
    17. Image Retention
    18. Reflections
    19. 3D
    20. Pixels
  5. Motion
    1. Motion Blur
    2. Image Flicker
    3. 24p Playback
    4. Motion Interpolation
  6. Inputs
    1. Input Lag
    2. Supported Resolutions
    3. Side Inputs
    4. Rear Inputs
    5. Total Inputs
    6. Inputs Specifications
  7. Sound Quality
    1. Frequency Response
    2. Distortion
  8. Smart Features
    1. Interface
    2. Ads
    3. Apps and Features
    4. Remote
    5. Remote App
    6. TV Controls
    7. In The Box
    8. Misc
  9. Sizes and Variants
  10. Compared
  11. Conclusion
  12. Q&A
Reviewed on Sep 18, 2017 , Ian Cumming, Martin Leduc, Mehdi Azzabi, Eric Bousquet

Samsung QLED Q8C/Q8
TV REVIEW

Usage Ratings - Version 1.1
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Test Benches:

  • 1.1: Summer 2017
  • 1.0: Winter 2015
  • 0.9: Winter 2014
  • 0.8: Winter 2013
7.9 Mixed Usage
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What it is General purpose. The TV will be used for a variety of content and usages. Movies at night, TV shows during the day, video games from time to time, etc.
Score components:
Recommended if under (USD)
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What it is: Maximum price to be a better value than its competitors.
How to use it: This product is the best choice in its range if you can find it below this price.
Automatically calculated every hour based on the scores and prices of all other products we've tested.
: $1,080
Value for price beaten by
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What it is: Product with the best value in this price range
Other best choice in a cheaper price range
Other best choice in a pricier price range
Automatically updated every hour based on the scores and prices of all other products we've tested.
: LG C7
7.4 Movies
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What it is Movies in the dark. The TV will be used for watching movies in a controlled environment, directly in front, in a home theater way. Mostly only high quality content, like Blu-rays, UHD Blu-rays, streaming and a little bit of HDR.
Score components:
8.0 TV Shows
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What it is TV Shows in a bright living room. The TV will be used in to watch TV shows, in a bright room during the day, from multiple viewing positions at different angles. The content watched has an average quality: cable, streaming, SD channels, etc.
Score components:
7.8 Sports
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What it is Sports in a living room. The TV will be used to watch sports during the day, like football or hockey. Usually watched with a group, so from multiple viewing position.
Score components:
8.3 Video Games
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What it is Video games. The TV will be used to play video games, directly in front, in a controlled light environment. Usually fast games, like online FPS, where motion blur and input lag is important.
7.7 HDR Movies
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What it is HDR Movies and TV shows. The TV will be used to watch 4k UHD HDR content, with a wide color gamut and a high peak brightness. Either via UHD Blu-rays or HDR streaming.
8.1 HDR Gaming
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What it is HDR Gaming. The TV will be used to play HDR video games using consoles that support it or on current generation gaming PCs. Xbox One S, PS4 Pro, GTX 10 series and AMD RX series graphics cards.
8.0 PC Monitor
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What it is PC Monitor. The TV will be used as a PC monitor, from 2-3 feet away, either for productivity purposes or gaming. Sharp text is important, as well as a high resolution.
Type : LED
Resolution : 4k
Refresh Rate : 120 Hz

The Samsung Q8C is a versatile curved 4k LED TV with a great design and good build quality thanks to its brushed metal finish. It gets decently bright, and it can reproduce one of the widest color volumes we've tested, which is great for HDR. Unfortunately, its picture quality degrades at an angle, and its local dimming feature is sub-par.

See our recommendations for the best 4k TV.
Test Results
Design 9.5
Picture Quality 7.6
Motion 8.9
Inputs 8.8
Sound Quality 7.4
Smart Features 8.1
Pros
  • Very good color volume for HDR
  • Low input lag for gaming
  • Great handling of reflections
Cons
  • Picture quality degrades at an angle

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9.5

Design

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Score components: Subjectively assigned
Samsung Q8C Design Picture
Curved : Yes

The design of the Q8C is excellent. It looks very sleek and modern from the front, and the curved stand supports the TV well. The back also looks great, with a thin metal surface. Note that the OneConnect box and the TV require separate power cables, which may make installation a bit more difficult for some people.

Stand
Samsung Q8C Stand Picture

The stand of the Q8 feels solid and supports the TV very well. As with other TVs that have a central stand, it will wobble a bit if knocked but this isn't an issue.

Footprint of the 55" TV stand: 10.8" x 31.6"

Back
Samsung Q8C Back Picture
Wall Mount : Vesa 400x400

The rear of the Q8C looks very good with a thin metal cover over the plastic rear. The cables to the One Connect box and the power can both be routed through the back of the stand, like the Q7F.

Borders
Samsung Q8C Borders Picture
Borders : 0.35" (0.9 cm)

The borders of the Q8 are very thin and look good. The metal corners also feel high quality.

Thickness
Samsung Q8C Thickness Picture
Max Thickness : 3.54" (9 cm)

The TV appears a bit thicker from the side due to the curve. As a result, it may stick out a bit on a flat wall but this generally isn't an issue.

Temperature
Samsung Q8C Temperature picture
Maximum Temperature
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What it is: The peak temperature found on the TV.
When it matters: If the TV is placed in an enclosed space.
Good value: <35°C
Noticeable difference: 5°C
:
33 °C
Average Temperature
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What it is: The average temperature measured on the TV.
When it matters: If the TV is placed in an enclosed space.
Good value: <35°C
Noticeable difference: 5°C
:
30 °C

The TV stays fairly cool, though the OneConnect box can get warm to the touch, reaching a maximum temperature of 39 °C. This shouldn't be a problem during normal usage.

8.0 Build Quality
Samsung Q8C Build quality picture

The build quality of the Q8C is great. Almost all of the TV has brushed metal, including the rear covers. The stand feels very high quality and weighs quite a lot as a result.

7.6

Picture Quality

The Samsung Q8C LED TV has a good picture quality. When set in a dark environment, the high contrast ratio makes for a rich looking dark scene, where blacks look very deep and decently uniform. When set in a brighter setting, the SDR peak brightness could be better, but the fact that the Q8C can deal with reflection superbly makes up for it and still makes it watchable, even if a bright lamp or a sunny window is in the proximity. The gray screen uniformity is very good and dirty screen effect is not a problem here, so sports fans can watch football without even noticing it. On the other hand, since the viewing angle is poor, the Q8C won't be the best TV to invite all your friends to watch the big game, since those sitting off center will have a lesser picture quality. Finally, HDR movies look very good on the Q8C. The impressive wide color gamut results in rich and saturated color and thanks to the very good HDR peak brightness, highlights really pop and shine when compared with SDR content. The only drawback here is the poor local dimming, as it is not very effective at diminishing blooming and does not help to make highlights even more punchy than what they already are.

8.7 Contrast
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What it is: Brightness difference between white and black. This is the main component of picture quality.
When it matters: Always, but especially when watching dark scenes.
Score components:
Samsung Q8C Checkerboard Picture
Native Contrast
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What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
4761 : 1
Contrast with local dimming
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What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with local dimming turned on (maximum) with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
4816 : 1

The Samsung Q8C has an excellent native contrast ratio. The contrast ratio is high enough so that blacks look very deep and this allows the Q8C to display dark scenes very well with a lot of details. This is particularly noticeable when the TV is set in a dark room.

When the local dimming is set to high (the maximum), the contrast ratio is almost the same. This is a good representation that the local dimming feature is poor on this TV.

1.8 Local Dimming
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What it is: The lights behind the LCD layer adapt to the picture displayed, improving the contrast ratio.
When it matters: Dark scenes viewed in a dark room.
Score components: Subjectively assigned
Local Dimming
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What it is: Whether it has a feature that controls the LEDs behind the LCD layer, to match the picture and darkens the dark portion of it.
When it matters: On LED TVs only. Dark scenes viewed in a dark room.
:
Yes
Backlight
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What it is: Configuration of the lights of the backlight.
When it matters: Effectiveness of the local dimming.
Good value: Full-array/direct lighting is better for local dimming. As for the uniformity of the screen, it depends on the implementation. Some edge-lit TVs have more uniform blacks than some full-array TVs.
:
Edge

The Q8C's local dimming is almost identical in performance to the Q7F as it is not better or worse in any way. As we see in our test clip taken from our test video, vertical blooming is following the bright moving highlight and no matter where is the highlight, vertical blooming is always apparent. This is particularly noticeable in black letter box bars when watching a movie.

7.3 SDR Peak Brightness
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What it is: How bright the screen can get. Measured with local dimming and with SDR content.
When it matters: Bright living rooms; bright objects; SDR content.
SDR Real Scene Peak Brightness
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What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. Our Real Scene was selected to represent a more regular movie condition. All measurements are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming on, max backlight and with an SDR signal. Scene: here.
When it matters: When watching movies and TV shows in SDR.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
265 cd/m2
SDR Peak 2% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, present on screen for a short time
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
552 cd/m2
SDR Peak 10% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, present on screen for a short time
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
1299 cd/m2
SDR Peak 25% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
617 cd/m2
SDR Peak 50% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
414 cd/m2
SDR Peak 100% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
130 cd/m2
SDR Sustained 2% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, persistent during a scene.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
388 cd/m2
SDR Sustained 10% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, persistent during a scene.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
690 cd/m2
SDR Sustained 25% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
613 cd/m2
SDR Sustained 50% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
414 cd/m2
SDR Sustained 100% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
129 cd/m2
SDR ABL
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What it is: The standard deviation of the SDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: Content with large bright areas, such as for PC or video game use, and sports such as hockey
Good value: <0.07
Noticeable difference: 0.01
:
0.097

Plot over time

Decent SDR peak brightness. While the TV can spike to incredible brightness for a short time, and even its sustained brightness is impressive for most windows, it severely dims bright scenes like our real scene test clip. This bright scene dimming behavior was also seen in the Q7F and Q9F, but not in other Samsung TVs like the MU8000.

7.6 HDR Peak Brightness
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What it is: How bright the screen can get. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright living rooms; bright objects; HDR content.
HDR Real Scene Peak Brightness
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What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. This scene was selected to represent a more realistic movie condition. All measurement are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming, max backlight and over HDR signal. Scene: here.
When it matters: When watching movies or watching TV show in HDR.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
531 cd/m2
HDR Peak 2% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, present on screen for a short time; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
817 cd/m2
HDR Peak 10% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright objects, present on screen for a short time; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
1061 cd/m2
HDR Peak 25% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms; bright objects in HDR video.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
758 cd/m2
HDR Peak 50% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
493 cd/m2
HDR Peak 100% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
481 cd/m2
HDR Sustained 2% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, persistent throughout a scene; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
519 cd/m2
HDR Sustained 10% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright objects, persistent throughout a scene; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
690 cd/m2
HDR Sustained 25% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms; bright objects in HDR video.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
699 cd/m2
HDR Sustained 50% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
492 cd/m2
HDR Sustained 100% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
479 cd/m2
HDR ABL
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What it is: The standard deviation of the HDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: HDR content with large bright areas, such as HDR gaming
Good value: <0.07
Noticeable difference: 0.01
:
0.026

Plot over time

Good HDR peak brightness. The TV's local dimming helps it brighten highlights in dim scenes, as shown by our 10% window test. The TV's brightness is still decent in its worst case, when its local dimming is defeated by our 100% window test. However, other competing TVs like the Sony X930E are brighter overall.

7.8 Gray Uniformity
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What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
Samsung Q8C 50% Uniformity Picture
50% Std. Dev.
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What it is: Average squared difference of pixels when displaying a mid 50% gray.
When it matters: Solid colors. Sports, panning shots.
Good value: < 2.5%
Noticeable difference: 1%
:
2.967 %
50% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Solid colors. Sports, panning shots.
Good value: < 0.165%
Noticeable difference: 0.025%
:
0.162 %
Samsung Q8C 5% Uniformity Picture
5% Std. Dev.
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What it is: Average squared difference of pixels when displaying a mid 5% gray.
When it matters: Dark scenes.
Good value: < 1.15%
Noticeable difference: 1%
:
0.759 %
5% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.106 %

The Q8C has a good gray uniformity. On our 50% gray test picture, the center of the screen looks very uniform which is good since dirty screen effect is not noticeable when watching sports like hockey or football. The screen is a bit warmer toward both the top and bottom and both sides look to be a bit darker, but once again the difference is not that big and overall this is a very good result. We did not notice any bright edges like on the 2016 KS8000, which is good.

When looking at our 5% gray uniformity test picture, the picture is very smooth without any visible uniformity issues and as such, nothing wrong can really be noticed here.

4.4 Viewing Angle
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What it is: Color accuracy when viewed from the side.
When it matters: Large living rooms with multiple viewing positions.
Score components:
LCD Type
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What it is: Type of LCD technology used by the TV.
When it matters: Different technologies have different viewing angle properties.
Good value: IPS maintains good color accuracy at an angle, but has a poor contrast ratio from in front. VA has great picture quality in front, but loses saturation at an angle.
:
VA
Samsung Q8C Color Shift Picture
Color Shift
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What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
14 °
Samsung Q8C Brightness Picture
Brightness
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What it is: Angle where the brightness drops to 50% of the brightness directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
37 °
Samsung Q8C Black Level Picture
Black Level
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What it is: Angle where the black level drops to 50% of the black level directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
14 °

Poor viewing angle, but fairly typical for a TV with a VA panel. Blacks turn gray and colors shift when the TV is viewed from even a small angle, while the brightness decreases at moderate angles. This TV is not a good fit for a room where people will be often viewing the TV from the side.

6.6 Black Uniformity
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What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
Samsung Q8C Native Black Uniformity Picture
Native Std. Dev.
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What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: < 1%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
1.632 %
Samsung Q8C Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
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What it is: Average of the squared difference of the blacks with Local Dimming enabled
When it matters: Dark scenes viewed in a dark room.
Good value: < 1%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
1.46 %

The Samsung Q8C black uniformity is below average. The fact that the local dimming can't be completely turned off here affects the uniformity test in a couple of ways. The first one being that we can't really show you how is the true native black uniformity since, at the minimum, the local dimming can only be set to low. Secondly, when set to low while displaying our test image, vertical blooming is visible in the middle where the cross is. Both sides are really black, thus affecting the whole screen evenness. Corners are usually where clouding happens most of the time on an LCD panel and in this case, we can't really show you if there is some near the corner, since the local dimming is turning off the backlight on both sides. We do notice some clouding below the white cross though, but it is very limited.

When the local dimming is set to maximum though, we see that the local dimming actually reduce the amount of blooming in the middle near the white cross and also, the faint clouding that was apparent when the local dimming was set to low, is now much less apparent, which is a bit better overall.

8.6 Gradient
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What it is: How finely levels of color can be displayed.
When it matters: Details in shadows, sky and skin tones. Matters more for HDR content.
Score components: Subjectively assigned
Samsung Q8C Gradient Picture
Color Depth
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What it is: Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters: HDR content like UHD Blu-ray players. Won't matter for cable TV, regular Blu-ray movies, video game consoles or content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
10 Bit

The gradient performance on the Q8C is great. No 8-bit banding is visible and overall the gradient looks smooth. The only main issues that are visible are some color banding in the darker shade and a bit in the darker grayscale. We did not notice any real banding problems in movies though, so those little issues are not causing any real problems with normal content. Note that this is a very similar result as seen on most of Samsung lineup.

7.1 Pre Calibration
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What it is: TV's color accuracy before a full calibration. Only the picture mode, color temperature, and backlight level were changed.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
Samsung Q8C Pre Calibration Picture Samsung Q8C Pre Gamma Curve Picture Samsung Q8C Pre Color Picture
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
3.84
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
2.74
Gamma
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What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.43

Out of the box, when set to the 'Movie' picture mode, the Q8C has a decent overall accuracy. The white balance dE is high enough so that an avid enthusiast could notice the inaccuracy and the screen is a bit on the warm side. Looking at the gamma, we see that in the lower stimulus (dark), the Q8C is darker than our target and this may results in dark scenes in movies being too dark.

When it comes to the color accuracy, the color dE is actually not bad and with a dE of 2.74, it is still accurate enough that only people that are used to work with professional equipment may notice the inaccuracy. There should not be any problems color-wise if you use the Q8C out of the box without calibration.

9.3 Post Calibration
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What it is: TV's color accuracy after a full calibration with a spectrophotometer.
When it matters: All video on a TV that has been professionally calibrated. This isn't that useful, because most TVs can achieve a pretty good calibration if you spend enough time on them.
Score components:
Samsung Q8C Post Calibration Picture Samsung Q8C Post Gamma Curve Picture Samsung Q8C Post Color Picture
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.28
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.62
Gamma
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What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.22

After calibration, the Q8C is very accurate. Most of the issues of the white balance and the gamma were fixed, except for the lower stimulus. They are still a bit of target since it would have induced more issues if we would have put extreme values. But overall, this is a very acceptable result.

The color dE was almost halved to a more reasonable 1.62 value, and most of the colors are tracking a bit more closely their targets, which is great overall.

See our calibration settings here.

8.0 480p Input
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What it is: Quality of a 480p input.
When it matters: Standard definition TV, DVDs.
Score components: Subjectively assigned
Samsung Q8C 480p Picture

Upscaling of DVDs or other 480p content is good. Edges are smoothed well without loss of detail.

8.0 720p Input
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What it is: Quality of a 720p input.
When it matters: HD channels, some streaming videos.
Score components: Subjectively assigned
Samsung Q8C 720p Picture

720p content such as cable looks good. The image is a bit less sharp than some other TVs, but remains detailed.

9.0 1080p Input
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What it is: Quality of a 1080p input.
When it matters: Blu-rays, streaming video, video files, video games.
Score components: Subjectively assigned
Samsung Q8C 1080p Picture

1080p content such as Blu-rays look great. The image remains sharp and no issues can be seen.

9.5 4k Input
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What it is: Quality of a 4k UHD input.
When it matters: Streaming video, UHD Blu-rays, some PCs.
Score components: Subjectively assigned
Samsung Q8C 4k Picture

With native 4k sources, some minor artifacts are visible from up close due to the pixel dimming algorithm. This is the same result as the Q7F and Q9F and occurs in images with low APL but some bright areas. This video of the sub-pixels of the Q7F with changing brightness show the effect.

8.5 Color Gamut
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What it is: How many colors the TV can display.
When it matters: HDR content. Includes some streaming videos and UHD Blu-rays.
Score components:
Wide Color Gamut
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What it is: Whether the TV has an option to enable wide color gamuts.
When it matters: HDR content. Includes some streaming videos and UHD Blu-rays.
:
Yes
Samsung Q8C Color Gamut DCI-P3 Picture
DCI P3 xy
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What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy.
When it matters: DCI P3 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
96.51 %
DCI P3 uv
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What it is: Coverage of the DCI P3 colorspace on CIE 1976 u' v'.
When it matters: DCI P3 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
97.68 %
Samsung Q8C Color Gamut Rec.2020 Picture
Rec 2020 xy
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What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
71.50 %
Rec 2020 uv
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What it is: Coverage of the Rec.2020 colorspace on CIE 1976 u' v'.
When it matters: Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
74.52 %
Samsung Q8C EOTF

Excellent wide color gamut, wider than most high end TVs. Nearly the entire DCI P3 gamut is covered, and the Rec 2020 gamut is fairly well covered except for green and cyan, which is common for modern TVs. This color gamut is a little less than that of the Q7F and Q9F, but this is probably due to panel variation as all the QLEDs likely use the same quantum dot layer.

The TV's EOTF in the 'HDR Movie' picture mode follows the PQ curve very closely until it starts to roll off then clip at its peak brightness. Increasing the 'Gamma' setting to maximum makes the roll off less severe, as shown here. The EOTFs in Game and PC mode have much more roll off, and the maximum brightness of PC mode is less because local dimming is disabled.

7.9 Color Volume
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What it is: How many colors a TV can display at different luminosity levels.
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Samsung Q8C P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
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What it is: How much of the DCI-P3 colorspace a TV can display at different luminosity levels
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value: 80%
Noticeable difference: 5%
:
87.6 %
10,000 cd/m² DCI P3 Coverage ITP
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What it is: How much of the DCI-P3 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
:
48.9 %
Samsung Q8C 2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
Show Help
What it is: How much of the Rec. 2020 colorspace a TV can display at different luminosity levels
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value: 80 %
Noticeable difference: 5 %
:
70.9 %
10,000 cd/m² Rec 2020 Coverage ITP
Show Help
What it is: How much of the Rec 2020 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
:
39.6 %

Good color volume, mostly limited by color gamut. The TV's local dimming helps it show its wide color gamut at a range of brightnesses, though its local dimming isn't granular enough to dim the center of our 'black with white border' slide, resulting in a mediocre black point.

10 Image Retention
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What it is: How much a static image is retained on a TV screen after a certain amount of time.
When it matters: When watching TV show, playing video games or when using your TV as a PC monitor.
Samsung Q8C Image Retention Picture
IR after 0 min recovery
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What it is: Image retention measured right after the static image exposure, without recovery time.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 2 min recovery
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What it is: Image retention measured after a recovery time of 2 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect
Noticeable difference: 0.015%
:
0 %
IR after 4 min recovery
Show Help
What it is: Image retention measured after a recovery time of 4 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 6 min recovery
Show Help
What it is: Image retention measured after a recovery time of 6 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 8 min recovery
Show Help
What it is: Image retention measured after a recovery time of 8 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 10 min recovery
Show Help
What it is: Image retention measured after a recovery time of 10 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %

Like most of the rest of Samsung TVs lineup, the Q8C doesn't suffer from image retention. This is good news for gamers out there since even a very define static image should not cause any short-term image retention, which can be annoying for some people.

9.0 Reflections
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What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
Samsung Q8C Reflections Picture Samsung Q8C Bright Room Picture
Reflection
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What it is: Ratio of ambient light reflected by the TV.
When it matters: Ambient light in the room.
Good value: < 1%
Noticeable difference: 0.5%
:
0.4 %
Screen Finish
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What it is: Type of coating on the screen.
When it matters: Bright objects in the direct reflection path (for example, opposite the TV).
Good value: Glossy is good for ambient light, but not for direct reflections.
:
Glossy

The reflection handling of the Q8C is excellent. Depending on your room setup the curve may result in result in magnified reflections or may avoid single light sources such as windows or lamps. The glossy finish results in more defined reflections but at very low intensity, reducing glare. There is some purple tint visible due to the anti-reflection coating. This is a great result even for a bright room.

0 3D
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What it is: Optional 3D video capability on TV.
When it matters: 3D movies and videos.
Score components: Subjectively assigned
3D
Show Help
What it is: If it can display a picture in 3D.
When it matters: 3D movies & videos.
:
No
3D Type
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What it is: The 3D technology used by the TV.
When it matters: 3D movies & videos.
Good value: Active have better resolution, but flickers. Passive is more comfortable, but loses half the vertical resolution.
:
No
2D to 3D
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What it is: Feature that converts 2D content to 3D.
When it matters: If you want to watch 2D content in 3D. Note that the quality is not as good as that of native 3D.
:
No

The Samsung Q8C does not support 3D.

Pixels
8.9

Motion

Motion looks great on the Q8C. The panel has a very fast response time resulting in low motion blur, the TV can remove 24p judder from nearly any source, and motion interpolation can interpolate content to 120 fps for those who don't mind the soap opera effect. Unfortunately, the TV's backlight only dims using PWM, resulting in double image artifacts in content not shown at 120 fps.

9.2 Motion Blur
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What it is: Amount of blur on fast movement.
When it matters: Sports, video games.
Score components:
Samsung Q8C Motion Blur Picture Samsung Q8C Response Time Chart
80% Response Time
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What it is: How quickly pixels can reach 80% of a full transition from one color to another.
When it matters: Fast movement.
Good value: < 8 ms
Noticeable difference: 4 ms
:
4.2 ms
100% Response Time
Show Help
What it is: How quickly pixels can fully transition from one color to another.
When it matters: Fast movement.
Good value: < 20 ms
Noticeable difference: 10 ms
:
10.7 ms

Excellent response time. Only a very faint trail can be seen following moving objects, which is great when watching content with lots of fast motion. This response time is very similar to the Q7F and Q9F, but a little worse than OLED TVs like the LG C7.

These measurements were done with the TV in PC mode at 100% backlight to prevent backlight PWM from adding noise to the measurements. The photo though was taken at a lower backlight setting, and shows double image artifacts due to the backlight PWM.

2.8 Image Flicker
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What it is: Luminosity pattern when displaying images
When it matters: Sports, video games, when TV is used as a PC monitor
Score components:
Samsung Q8C Backlight Picture
PWM Dimming Frequency
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What it is: Flickering pattern at different luminosities.
When it matters: For people sensitive to flickering.
Good value: N/A or high frequencies (> 300 Hz). Frequencies that are multiples of 60Hz are better.
:
120 Hz
Black Frame Insertion (BFI)
Show Help
What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in sports or video games
Good value: Yes
:
No
Samsung Q8C BFI Picture Samsung Q8C BFI Frequency Picture
BFI Frequency
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What it is: Lowest possible frequency of flickering pattern
When it matters: Reduces eye tracking blur in sports or video games
Good value: 60 Hz
:
120 Hz
BFI In Game Mode
Show Help
What it is: Option to insert black frames when in the best settings for gaming
When it matters: Reducing eye tracking blur for video games
Good value: Yes
:
No

The TV dims the backlight mostly through PWM at 120 Hz, though it does decrease the amplitude at lower brightness. In SDR Movie mode PWM is present even at maximum backlight in nearly all cases (except on a 10% window with local dimming on high). In PC mode however, there is no PWM at maximum backlight, as seen in this plot; PWM isn't activated until the backlight is at 13/20. Because PWM is nearly always present, motion will look less smooth on video not shown at 120 fps because double image artifacts will occur, as seen in the Motion Blur photo.

The TV has a Black Frame Insertion (BFI) feature called 'LED Clear Motion' that increases the amplitude of the PWM pulses, but unfortunately, doesn't change the frequency of the PWM. This means that motion will be very smooth for video shown at 120 fps such as when using motion interpolation, but for video not at 120 Hz the double image artifacts will be even worse, as seen in the BFI photo. 'LED Clear Motion' is not available in Game or PC mode.

10 24p Playback
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What it is: Whether 24p content can play without any judder.
When it matters: Only 24p content (mostly just movies).
Judder-free 24p
Show Help
What it is: Judder-free movies over 24p signal.
When it matters: Blu-ray and DVD movies; 24 hz PC signal.
:
Yes
Judder-free 24p via 60p
Show Help
What it is: Judder-free movies over 60p signal.
When it matters: Movies from streaming devices (Apple TV, Fire TV, etc.); 60 hz PC signal.
:
Yes
Judder-free 24p via 60i
Show Help
What it is: Judder-free movies over 60i signal.
When it matters: Movies from cable/satellite boxes.
:
Yes

The Q8C can correctly display 24p movies at the right cadence playing from 24p, 60p, and 60i sources. This means that no matter from which source you are playing 24p movies, you should be able to have a judder free movies experience. This is particularly important for people who are sensitive to judder.

To be able to watch movies without judder and without adding soap opera effect, the 'Auto Motion Plus' option needs to be set to 'Custom' and both 'Blur Reduction' and 'Judder Reduction' must be set to 0. When set as such, the TV should display correctly the movies without judder and panning shot should look smooth.

10 Motion Interpolation
Show Help
What it is: Also known as 'Soap Opera Effect'. It is an optional feature that increases the frame rate of the video, smoothing movement.
When it matters: If you like the look of smoothed video. Not everyone does.
Motion Interpolation (30 fps)
Show Help
What it is: Whether the TV can take a 30 fps input and heighten the frame rate to at least 60 fps.
When it matters: 30 fps or lower videos. Includes movies, TV shows, some video games.
:
Yes
Samsung Q8C Motion Interpolation (30 fps) Picture
Motion Interpolation (60 fps)
Show Help
What it is: Whether the TV can take a 60 fps input and heighten the frame rate to at least 100 fps.
When it matters: 60 fps videos. Includes some video games, some sports channels.
:
Yes
Samsung Q8C Motion Interpolation (60 fps) Picture

The Q8C has a 120 Hz panel, and can interpolate lower frame rate content up to a full 120 fps. Motion interpolation (soap opera effect) is enabled by changing 'Auto Motion Plus' to 'Custom' and increasing the sliders. The 'Judder Reduction' slider affects lower frame rate content, while the 'Blur Reduction' slider affects 60 fps and higher content. Motion interpolation adds artifacts, so set the sliders to low values unless you really like motion interpolation.

8.8

Inputs

Show Help
Score components:

The Q8C QLED can properly display almost any content, including HDR. It also has excellent low input lag, which will please all but the most competitive gamers.

9.0 Input Lag
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What it is: Delay between input and onscreen reaction.
When it matters: Video games; when TV is used as PC monitor.
4k @ 60Hz
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
24.3 ms
1080p @ 60Hz
Show Help
What it is: Lowest input lag possible on TV with a 1080p @ 60Hz input.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
23.6 ms
4k @ 60Hz + HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz with HDR.
When it matters: HDR Video games.
Good value: < 40 ms
Noticeable difference: 15 ms
:
20.1 ms
1080p @ 60Hz + HDR
Show Help
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz with HDR.
When it matters: HDR video games from a console outputting a 1080p signal.
Good value: < 40 ms
Noticeable difference: 15 ms
:
23.6 ms
4k @ 60Hz Outside Game Mode
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What it is: Lowest input lag possible on the TV when displaying 4k @ 60Hz in a fully featured picture mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40 ms
Noticeable difference: 15 ms
:
79.4 ms
1080p @ 60Hz Outside Game Mode
Show Help
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz in a fully featured picture mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40 ms
Noticeable difference: 15 ms
:
77.4 ms
4k @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4.
When it matters: PC Monitor
Good value: < 40 ms
Noticeable difference: 15 ms
:
20.7 ms
1080p @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 1080p @ 60Hz @ 4:4:4
When it matters: PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
20.6 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4 with HDR enabled at 8 bit
When it matters: PC Monitor with an HDR capable graphic card
Good value: < 40 ms
Noticeable difference: 15 ms
:
20.5 ms
1080p @ 60Hz @ 4:4:4 + HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 1080p @ 60Hz @ 4:4:4 with HDR
When it matters: PC monitor with an HDR capable graphics card
Good value: < 40 ms
Noticeable difference: 15 ms
:
20.6 ms
4k With Interpolation
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What it is: Lowest input lag for 4k content when the motion interpolation feature is turned on.
When it matters: When you want to play video games with the Soap Opera Effect enabled.
Good value: < 40 ms
Noticeable difference: 15 ms
:
79.5 ms
1080p With Interpolation
Show Help
What it is: Lowest input lag for 1080p content when the motion interpolation feature is turned on.
When it matters: When you want to play video games with the Soap Opera Effect enabled.
Good value: < 40 ms
Noticeable difference: 15 ms
:
77.6 ms
1080p @ 120 Hz
Show Help
What it is: Lowest input lag possible on TV with a 1080p @ 120Hz input.
When it matters: When the TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
N/A

Excellent low input lag, which will please all but the most competitive gamers. Both Game and PC mode have the same low input lag, but only PC mode shows 4:4:4 color properly. This input lag is very similar to all other 2017 Samsung TVs and the LG C7 OLED, better than nearly all Sony TVs, but a little worse than the TCL P607 and LG SJ8500.

8.0 Supported Resolutions
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What it is: Different resolutions supported by TV.
When it matters: PC monitor usage.
Score components:
  • 20% 1080p @ 60Hz @ 4:4:4
  • 20% 1080p @ 120Hz
  • 20% 4k @ 30Hz @ 4:4:4
  • 20% 4k @ 60Hz
  • 20% 4k @ 60Hz @ 4:4:4
1080p @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 1060p @ 60 hz signal.
When it matters: PC productivity and 60 fps gaming.
:
Yes
1080p @ 120Hz
Show Help
What it is: 120 fps 1080p signal supported.
When it matters: PC gaming.
:
No
4k @ 30Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 30 hz signal.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz
Show Help
What it is: 60 fps 4k signal supported.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 60 hz signal.
When it matters: Productivity and 60 fps gaming in 4k.
:
Yes

Most common resolutions are supported. 4k @ 60 Hz @ 4:4:4 or 4:2:2 color are only supported when 'HDMI UHD color' is enabled for the port used. 4:4:4 color is only shown properly when the input's icon is set to 'PC' (aka PC mode). PC mode is not possible for some input refresh rates such as 24 Hz; the icon will still change to PC, but the settings that are normally disabled in PC mode are not disabled, and 4:4:4 color is not shown properly.

Side Inputs

All of the inputs to the TV are located on the OneConnect Mini box.

Rear Inputs
Samsung Q8C Rear Inputs Picture

The OneConnect box contains all of the inputs to the TV but requires a separate power cable.

Total Inputs
HDMI : 4
USB : 3
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 0
Analog Audio Out RCA : 0
Component In : 0
Composite In : 0
Tuner (Cable/Ant) : 1
Ethernet : 1
DisplayPort : 0
IR In : 0
SD/SDHC : 0

Inputs Specifications
HDR10
Show Help
What it is: Standard HDR format.
When it matters: Most common format. All UHD Blu-ray discs are required to have it.
:
Yes
Dolby Vision
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What it is: Better format, due to its dynamic nature.
When it matters: Dolby Vision mastered content. Current available from streaming services (Netflix, Amazon Video), some Blu-Ray players, the Apple TV 4k and ChromeCast Ultra.
:
No
5.1 Passthrough ARC Dolby Digital
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What it is: TV can receive and pass Dolby Digital 5.1 signal to receiver via HDMI ARC.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough ARC DTS
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What it is: TV can receive and pass DTS 5.1 signal to receiver via HDMI ARC.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical Dolby Digital
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What it is: TV can receive and pass Dolby Digital signal to receiver via digital optical.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical DTS
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What it is: TV can receive and pass DTS signal to receiver via digital optical.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
HDMI 2.0 Full Bandwith : Yes (HDMI 1,2,3,4)
ARC : Yes (HDMI 2)
USB 3 : No
HDCP 2.2 : Yes (HDMI 1,2,3,4)
CEC : Yes
MHL : No
Variable Analog Audio Out : No

Only one of Dolby Digital or DTS can be enabled at a time, the TV will not change between them automatically.

7.4

Sound Quality

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What it is: How well and accurately the audio is reproduced.
When it matters: When a good and accurate sound reproduction is needed.
Score components:

The Samsung Q8C sounds decent for a TV. It's not to say it would not benefit from an upgrade such as a sound bar, but most people will be satisfied with its audio capabilities.

7.4 Frequency Response
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What it is: How accurately the sound level of each frequency is being produced.
When it matters: For a balanced and neutral sound.
Samsung Q8C Frequency Response
Low-Frequency Extension
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What it is: The lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters: Movies, Gaming. Shows how extended the bass is.
Good value: < 60Hz
Noticeable difference: 10Hz
:
59.93 Hz
Std. Dev. @ 70
Show Help
What it is: The amount of deviation (weighted standard deviation) in frequency response measured at 70dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters: Shows the TV's frequency response at quiet listening levels
Good value: < 4 dB
Noticeable difference: 0.5 dB
:
3.94 dB
Std. Dev. @ 80
Show Help
What it is: The amount of deviation (weighted standard deviation) in frequency response measured at 80dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters: Shows the TV's frequency response at moderate listening levels
Good value: < 4 dB
Noticeable difference: 0.5 dB
:
3.72 dB
Std. Dev. @ Max
Show Help
What it is: The amount of deviation (weighted standard deviation) in frequency response measured with the TV at maximum volume, as compared to a target response that would sound perfectly balanced to most people.
When it matters: Shows the TV's frequency response at under maximum load
Good value: < 4 dB
Noticeable difference: 2 dB
:
6.2 dB
Max
Show Help
What it is: Maximum volume reached by the TV at their optimum viewing distance (size dependent)
When it matters: For listening to loud audio.
Good value: > 88 dB
Noticeable difference: 2 dB
:
91.7 dB SPL
Dynamic Range Compression
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What it is: The amount of difference between the TVs frequency response performance at 70dB SPL and Max dB SPL. Too much compression will result in pumping in the sound.
When it matters: When an accurate and free-of-pumping performance is required at higher volumes
Good value: < 3dB
Noticeable difference: 0.5
:
3.87 dB

Decent frequency response. The Q8C follows our target decently well, and at 91.7 dB, it gets reasonably loud. Its frequency extension is better than average, helping it have a full sound. It does have a significant amount of dynamic range compression at higher volumes, and it lacks a room calibration feature which would help it sound even better.

7.4 Distortion
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What it is: Deformation of an output signal compared to its input, usually clipping, harmonic distortion, or inter-modulation distortion caused by non-linear behavior of the sound system.
When it matters: When a clean, pure and transparent reproduction is desired.
Score components:
Samsung Q8C Total Harmonic Distortion
Weighted THD @ 80
Show Help
What it is: The overall amount of harmonic distortion measured at 80dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at moderate listening levels.
Good value: < 0.100
Noticeable difference: 0.100
:
0.177
Weighted THD @ Max
Show Help
What it is: The overall amount of harmonic distortion measured at the TV's maximum SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at moderate listening levels.
Good value: < 0.100
Noticeable difference: 0.100
:
1.175
IMD @ 80
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What it is: The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters: When a clean and free of aliasing reproduction is desired
Good value: < 5%
Noticeable difference: 2
:
0.72 %
IMD @ Max
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What it is: The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters: When a clean and free of aliasing reproduction is desired
Good value: < 5%
Noticeable difference: 2
:
1.79 %

Decent distortion performance. The Q8C has relatively low THD at most volumes, and it remains reasonable even at higher levels.

8.1

Smart Features

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Score components:
  • 42% Interface
  • 2% Ads
  • 37% Apps and Features
  • 16% Remote
  • 3% Remote App
Samsung Q8C Smart TV Picture
Smart OS : Tizen
Version : 2017

The Samsung Q8C runs the 2017 Tizen smart platform, also known as Smart Hub. It's very easy to use but can take a little longer to navigate than some other platforms. The remote has few buttons, relying on the user navigating the Smart Hub to perform most tasks. The remote also has a great voice command feature that can perform many actions like changing between inputs and apps and directly changing settings. The Samsung app store has a lot of apps available for download, and apps run fairly smoothly. Unfortunately, there is an ad box in the home menu, which can be a little annoying.

8.0 Interface
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What it is: The usability, features and performance of the main interface of the TV, not including the interfaces of the apps themselves.
When it matters: Anytime when using the TV, but especially when changing settings and using apps.
Score components: Subjectively assigned
Ease of Use
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What it is: How easy the interface is to navigate, affected by the organization of its layout, placing frequently accessed elements in areas that are faster to access, etc.
When it matters: When using the smart features.
:
Easy
Smoothness
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What it is: How smooth the interface is to navigate, affected by lag and frame drops.
When it matters: When using the smart features.
:
Average
Time Taken to Select YouTube
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What it is: How long it takes to select YouTube for launch, starting from HDMI 1 input, when YouTube is placed first on the list of apps or added as a shortcut. This does not include app launch time, and does not use a fixed YouTube button on a remote. This serves as an indication of the time needed to select any app.
When it matters: When launching any app.
:
3 s
Time Taken to Change Backlight
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What it is: The time it takes to navigate to the 'Backlight' setting ('Brightness' on Sony TVs). This serves as an indication of how long it takes to navigate to basic TV settings.
When it matters: When changing TV settings.
:
7 s
Advanced Options
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What it is: Whether advanced options and settings are available, such as color calibration.
When it matters: When customizing the TV and using the smart features.
:
Many

The TV's interface is centered around the Smart Hub, through which you must pass to access the rest of the interface. This makes the TV easy to use and understand, but does add extra steps to some interactions which slows things down. This is alleviated somewhat by the second row of the Smart Hub, which has quick settings and suggested content, saving time during some common tasks. The interface has many nice animations but these often have frame drops and stutter, more than the 2016 Tizen platform.

0 Ads
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What it is: Whether or not ads can be found on the TV's smart platform.
When it matters: When using the smart features.
Score components:
Samsung Q8C Ads Picture
Ads
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What it is: Whether the TV's main interface has ads. This does take into account ads in third-party apps.
When it matters: When using the smart features.
:
Yes
Opt-out
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What it is: Whether you can opt out of the ad services or not. A TV only passes this test if it allows you to remove them completely, not only disable the personalized advertising.
When it matters: When using the smart features.
:
No
Suggested Content in Home
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What it is: Whether suggested content appears in the TV's home menu or main menu. Suggested content can include recommended movies, TV shows, YouTube videos etc.
:
Yes
Opt-out of Suggested Content
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What it is: Whether the suggested content feed in the home menu can be removed or hidden
:
No

The TV sometimes has ads on the Smart Hub bar, and they can't be disabled. The second row of the Smart Hub has suggested content when an app like Netflix is in focus, but this isn't very annoying as your eyes are usually on the first row.

8.5 Apps and Features
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What it is: The usability, features and performance of apps and other smart features.
When it matters: Only when using smart features such as apps, casting and USB playback.
Score components: Subjectively assigned
Samsung Q8C Apps Picture
App Selection
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What it is: The number and variety of apps available to download for the smart platform.
When it matters: When downloading new apps.
:
Many
App Smoothness
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What it is: How smooth it feels to navigate the interfaces of apps, affected by lag and frame drops.
When it matters: When using apps.
:
Average
Cast Capable
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What it is: Whether apps on a phone or tablet can cast content to the TV.
:
Yes
USB Drive Playback
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What it is: Whether the TV can play content from a drive connected to one of the TV's USB ports.
:
Yes
USB Drive HDR Playback
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What it is: Whether HDR files played from a USB drive can be displayed properly.
:
Yes
HDR in Netflix
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What it is: Whether HDR content on Netflix can be played back in HDR using the native Netflix app.
:
Yes
HDR in Amazon Video
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What it is: Whether HDR content on Amazon Video can be played in HDR using the native Amazon Video app.
:
Yes
HDR in YouTube
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What it is: Whether HDR content on YouTube can be played in HDR using the native YouTube app.
:
Yes

The TV comes preinstalled with a few popular apps like Netflix and YouTube, and the Samsung app store offers a large selection of apps available for download.

8.5 Remote
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What it is: The usability and features of the TV's physical remote.
Score components: Subjectively assigned
Samsung Q8C Remote Picture
Size
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What it is: How big the remote is
:
Small
Voice Control
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What it is: The capabilities of the TV's voice control feature
:
Many Features
CEC Menu Control
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What it is: Whether the remote can act as a universal remote for HDMI CEC enabled devices. This was tested on our Samsung UBD-K8500 4K Blu-ray player, and may not be valid for other CEC devices as implementations vary by manufacturer.
:
Yes
Other Smart Features
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What it is: Whether the remote has any other smart features, such as a pointer, universal remote support for non HDMI CEC devices, etc.
:
Yes

The Q8C comes with a very nice metal unibody remote, like the Q7F and Q9F. Its great build quality and small size gives it a great in hand feel. It has few buttons, instead requiring the user to navigate the Smart Hub to do things like change inputs. This is alleviated somewhat by the remote's incredible voice command feature, which can perform many actions like directly changing settings, switching between inputs and apps, and entering text. The remote can also act as a universal remote for devices that don't support HDMI CEC, using Samsung's One Remote feature.

7.0 Remote App
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What it is: The features of the official phone and tablet app for the TV.
Score components: Subjectively assigned
Samsung Q8C Remote App Picture
Acts as the Remote
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What it is: Whether the remote app can emulate all the buttons of the physical remote.
:
Yes
Launches Apps and Inputs
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What it is: Whether the remote app can launch the TV's apps and change between its inputs.
:
Apps Only
Inputs Text in YouTube
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What it is: Whether the remote app can enter text for YouTube searches.
:
No
Inputs Text in Netflix
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What it is: Whether the remote app can enter text for Netflix searches.
:
No
Streams Device Files
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What it is: Whether the remote app can stream files from the phone or tablet to the TV, files such as pictures, music and video.
:
Yes
Controls TV Settings
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What it is: Whether the app can change all or some of the settings on the TV, such as the backlight.
:
No
Voice Control
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What it is: Whether the remote can send voice commands to the TV.
:
Yes

The Samsung SmartView app has a few useful features, such as streaming local files on a phone or tablet directly to the TV; but the app lacks a few features found on other apps, such as text entry. On certain Samsung phones the Samsung Connect app adds a few more features such as screen mirroring and playing the TV's sound through the phone itself.

TV Controls
Samsung Q8C Controls Picture

The TV has one physical button. Pressing it brings up a menu with six icons: power, inputs, channel up and down, and volume up and down. A short press changes icons and a long press selects them.

In The Box
Samsung Q8C In The Box Picture

  • Manual
  • Batteries
  • Remote
  • Wall mount spacers
  • Screen cleaning cloth
  • Optical cable guides

Misc
Power Consumption : 68 W
Power Consumption (Max) : 171 W
Firmware : 1123

Differences between Sizes and Variants

We tested the 55" (QN55Q8C) version AA01. For the most part, we expect our review to be valid for the 65" version (QN65Q8C) and 75" version (QN75Q8C).

If someone comes across a different type of panel or if their Samsung Q8C doesn't correspond to our review, let us know and we will update the review.

Size Model Model Short US Canada UK Warehouse Warehouse long
55" QN55Q8C QN55Q8 QN55Q8CAMFXZA QN55Q8CAMFXZC QE55Q8C N/A N/A
65" QN65Q8C QN65Q8 QN65Q8CAMFXZA QN65Q8CAMFXZC QE65Q8C N/A N/A
75" QN75Q8C QN75Q8 QN75Q8CAMFXZA QN75Q8CAMFXZC QE75Q8C N/A N/A

Compared to other TVs

Samsung Q8C Group Shot Picture
Top left: Sony X930E (XBR55X930E). Bottom left: LG C7 (OLED55C7P). Middle: Samsung Q8C (QN55Q8C). Top right: Sony A1E (XBR55A1E). Bottom right: LG E7P (OLED55E7P).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Samsung Q8C is a good, premium LED TV with good picture quality, but its price is hardly justified by its performance. Just about any of the TVs it competes with is a better pick.

Sony X930E
55" 65"

Sony's X930E 4k LED TV is one of their premium HDR TVs for 2017. It features some of the best picture quality we've seen on an LCD TV, and it gets exceptionally bright. It's one of the best TVs available this year, and compared to the Q8C, it's better in almost every way. Unless you plan on using your TV as a PC monitor where the curved design is useful, the X930E is a better choice.

LG C7
55" 65"

The LG C7 is a 4k OLED TV that offers exceptional picture quality and great versatility thanks to its wide viewing angle, great motion, and low input lag. It's usually found a little cheaper than the Q8C and at that price, it's a complete no-brainer. Unless you absolutely want an LED TV, the LG C7 is a better TV.

Sony A1E
55" 65" 77"

The Sony A1E is a high-end 4K OLED that features a striking minimalist design and better than average sound quality for a TV. It has excellent picture quality as well as some of the best motion handling currently available. It's significantly more expensive than the Q8C, but it is a significantly better TV. 

Samsung Q7F
55" 65" 75"

The Samsung Q7F is the cheapest model in their QLED line of 4k LCD TVs. It features the same excellent color volume found on the Q8C, and overall performs about the same. Unless you really want the fancier, metallic back design of the Q8C, save your money and buy the Q7F instead.

Conclusion
SEE PRICE
Amazon.com

7.9Mixed Usage
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What it is General purpose. The TV will be used for a variety of content and usages. Movies at night, TV shows during the day, video games from time to time, etc.
Score components:
Very good TV for a mixed usage. The Samsung Q8C offers a versatile set of features and good overall picture quality, which makes it a good choice for most situations. It does have a narrow viewing angle, which makes it less suitable for wider living rooms.
7.4Movies
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What it is Movies in the dark. The TV will be used for watching movies in a controlled environment, directly in front, in a home theater way. Mostly only high quality content, like Blu-rays, UHD Blu-rays, streaming and a little bit of HDR.
Score components:
Decent TV for watching movies in a dark room. Samsung's Q8C has a good contrast ratio which allows it to reproduce blacks well, but its local dimming performance is lackluster and stops it from properly reducing blooming in a darker environment.
8.0TV Shows
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What it is TV Shows in a bright living room. The TV will be used in to watch TV shows, in a bright room during the day, from multiple viewing positions at different angles. The content watched has an average quality: cable, streaming, SD channels, etc.
Score components:
Great TV for watching TV shows, the Q8C is one of the best TVs at handling reflections thanks to its very good screen coating. It also gets quite bright, so viewing in environments with lots of ambient light is not an issue.
7.8Sports
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What it is Sports in a living room. The TV will be used to watch sports during the day, like football or hockey. Usually watched with a group, so from multiple viewing position.
Score components:
Very good Sports watching TV. The Q8C handles motion well, and its better than average gray uniformity means grassy fields won't have a dirty, blotchy look. Unfortunately, its viewing angle could be better, so it doesn't offer the best picture quality when viewed from the sides.
8.3Video Games
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What it is Video games. The TV will be used to play video games, directly in front, in a controlled light environment. Usually fast games, like online FPS, where motion blur and input lag is important.
The Samsung Q8C is a great choice for playing video games. Its low input lag, great handling of motion and good picture quality make it a safe choice and overall great performer for a gaming TV.
7.7HDR Movies
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What it is HDR Movies and TV shows. The TV will be used to watch 4k UHD HDR content, with a wide color gamut and a high peak brightness. Either via UHD Blu-rays or HDR streaming.
Better than average HDR performance. The Q8C gets decently bright, and it displays one of the widest color gamuts we've measured making HDR content vibrant and very saturated. Unfortunately, its local dimming falls a bit short, so it doesn't have the most uniform blacks around.
8.1HDR Gaming
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What it is HDR Gaming. The TV will be used to play HDR video games using consoles that support it or on current generation gaming PCs. Xbox One S, PS4 Pro, GTX 10 series and AMD RX series graphics cards.
The Q8C provides a satisfactory HDR gaming experience thanks to its good HDR capabilities and input lag that remains low regardless of the type of input.
8.0PC Monitor
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What it is PC Monitor. The TV will be used as a PC monitor, from 2-3 feet away, either for productivity purposes or gaming. Sharp text is important, as well as a high resolution.
Great PC monitor. The Q8 has support for all the essential resolutions, and its low input lag and response time means that mouse movement is responsive and intuitive. Its curved screen also helps enhance its viewing angle when sitting up close, where edges will sometimes darken on flat-screen TVs.
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