Preferred monitor store
Reviewed on Mar 07, 2019 , Simon Barbier, Yannick Khong

Gigabyte Aorus AD27QD
MONITOR REVIEW

Usage Ratings - Version 1.0

Test Benches:

  • 1.0: Fall 2017
8.0
Mixed Usage
Score components:
Size : 27 "
Resolution : 2560x1440
Refresh Rate : 144 Hz
LCD Type
What it is: Type of LCD technology used by the monitor.
When it matters: Different technologies have different viewing angle properties.
:
IPS
Variable Refresh Rate
What it is: Feature that allows the monitor to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable in gaming where constant fluctuation in framerate cause distracting artifacts.
:
FreeSync

The Aorus AD27QD is a great 1440p, 144Hz gaming monitor. It has a great design, with RGB bias lighting, very good ergonomics, and an easy to remove stand. It delivers decent overall picture quality, but like most IPS monitors, it doesn't look as good in a dark room. The AD27QD has outstanding motion handling with an extremely fast response time, an optional black frame insertion feature, and low input lag. Finally, it has a unique set of additional features that could give some gamers that extra little edge, including a unique active noise cancellation feature.

Test Results
Design 8.0
Picture Quality 7.3
Motion 9.2
Inputs 9.1
Pros
  • Great gaming features, including FreeSync support
  • Image remains accurate when viewed at an angle
  • Outstanding motion handling and low input lag
Cons
  • Mediocre dark room performance
Update 4/24/2019: With GeForce driver version 430.39, the Aorus is now certified by NVIDIA as G-SYNC Compatible.

Check Price

8.0

Design

Score components: Subjectively assigned
Gigabyte  Aorus AD27QD Design Picture
Curved : No
Curve radius : N/A
Weight (without stand)
What it is: The weight of the monitor when mounted. This is with the stand removed, and if necessary any VESA mounting bracket attached.
When it matters: When choosing a mount for a monitor/
:
11.5 lbs (5.2 kg)
Weight (with stand)
What it is: The weight of the monitor including the stand any any input covers.
:
17.6 lbs (8.0 kg)

The Aorus AD27QD has a great design, very similar to the Acer Predator X27. The stand doesn't take up too much space and has good ergonomics, allowing you to easily place the monitor in a comfortable position or share your screen with someone else. The monitor is well-built with a solid construction, and there are no obvious issues in build quality. There is a convenient carrying handle and RGB bias lighting, but no headphone stand, unlike the AOC AGON AG271QX.

Stand
Gigabyte  Aorus AD27QD Stand picture
Width
What it is: The width of the stand.
When it matters: When using a small desk, for those who require a monitor with a small footprint.
:
17.8" (45.2 cm)
Depth
What it is: The depth of the stand.
When it matters: When using a small desk, for those who require a monitor with a small footprint.
:
9.3" (23.6 cm)

The stand is wide-set, but the legs are thin and still allow small objects to be placed in front of them, similar to the Predator X27. They support the monitor well, but it still wobbles a bit when nudged.

7.7 Ergonomics
What it is: How much the position of the screen can be adjusted to match the viewing preference of the user.
When it matters: All usages, but especially office and gaming use.
Score components:
  • 46% Height Adjustment
  • 18% Switch portrait/landscape
  • 18% Swivel Range
  • 18% Tilt Range
Gigabyte  Aorus AD27QD Ergonomics picture
Height Adjustment
What it is: The amount of vertical travel or adjustment of the display.
:
5.1" (13.0 cm)
Switch portrait/landscape : Yes
Swivel Range : -20° to 20°
Tilt Range : -20° to 5°

The Aorus AD27QD has very good ergonomics. It can be rotated to a portrait orientation, which is great, and it can swivel from side to side, making it easier to share your screen with someone nearby.

Back
Gigabyte  Aorus AD27QD Back picture
Wall Mount : VESA 100x100

The back of the monitor is clean, but has an aggressive design. There is customizable RGB Bias lighting on the back of the monitor and stand. There is only basic cable management through a hole in the stand, and the stand can be removed without any tools, thanks to a simple release button.

Borders
Gigabyte  Aorus AD27QD Borders picture
Borders
What it is: The distance from the left edge of the display to the start of the image.
When it matters: When using multiple monitors side-by-side.
:
0.3" (0.8 cm)

The borders of the AD27QD are thin, and well-suited for a multi-monitor setup.

Thickness
Gigabyte  Aorus AD27QD Thickness picture
Thickness (with stand)
What it is: How far the front of the screen protrudes when placed as far back as possible against a wall.
When it matters: When the monitor is placed back against a wall.
:
8.4" (21.3 cm)
Thickness (without stand)
What it is: How far the front of the screen protrudes when the stand has been removed. For monitors which require a bracket to VESA mount this measurement includes the thickness of the bracket.
When it matters: When mounting a monitor with the stand removed.
:
2.3" (5.8 cm)

The monitor is thick when mounted on the stand, but the display itself is thin, making it good if VESA mounted.

8.0 Build Quality
What it is: How well built and sturdy the monitor is, and how good the materials used to build it are.
When it matters: All usages.
Score components: Subjectively assigned
Gigabyte  Aorus AD27QD Build Quality picture

The AD27QD has good overall build quality, with no obvious issues or construction flaws. The monitor feels solid and has a lot of metal.

The Aorus AD27QD delivers decent overall picture quality. It gets bright enough for most rooms but has only decent reflection handling. In a dark room, it doesn't look as good, as blacks look gray due to the mediocre native contrast ratio. It also has bad black uniformity. It can display a wide color gamut for HDR content, which is great, and it has decent peak brightness in HDR, surpassing the minimum requirements for VESA DisplayHDR 400, although small highlights in some scenes aren't as bright as they should be.

6.1 Contrast
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:
Gigabyte  Aorus AD27QD Checkerboard Picture
Native Contrast
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
:
1063 : 1
Contrast with local dimming
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
:
N/A

The AD27QD has a mediocre contrast ratio, like most IPS monitors. This results in grayish blacks, and isn't ideal for dark scenes. This isn't as good as the CHG70, which has a VA panel, and a much higher native contrast ratio. Unfortunately, there is no local dimming feature that could improve the contrast ratio.

0 Local Dimming
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
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.
:
No
Backlight
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 monitors have more uniform blacks than some full-array monitors.
:
Edge

The Aorus AD27QD does not support local dimming. The above video is provided for reference only.

8.1 SDR Peak Brightness
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
What it is: The maximum luminosity the monitor 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
:
369 cd/m²
SDR Peak 2% Window
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 monitor 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
:
397 cd/m²
SDR Peak 10% Window
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 monitor 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
:
397 cd/m²
SDR Peak 25% Window
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 monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
397 cd/m²
SDR Peak 50% Window
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 monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
397 cd/m²
SDR Peak 100% Window
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 monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
397 cd/m²
SDR Sustained 2% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, persistent during a scene.
:
396 cd/m²
SDR Sustained 10% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, persistent during a scene.
:
397 cd/m²
SDR Sustained 25% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
397 cd/m²
SDR Sustained 50% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
397 cd/m²
SDR Sustained 100% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
397 cd/m²
SDR ABL
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
:
0.000

Great peak brightness, very similar to the ASUS PG279Q. There is very little fluctuation in brightness with different content, which is great. Brightness was measured with the 'Standard' Picture Mode.

6.9 HDR Peak Brightness
What it is: How bright the screen can get. Measured with local dimming and with HDR content.
When it matters: HDR content
HDR Real Scene
What it is: The maximum luminosity the monitor can obtain while playing a movie or while watching a TV show. This scene was selected to represent a more realistic movie condition. All measurements are made with the monitor 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
:
432 cd/m²
HDR Peak 2% Window
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 monitor 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
:
419 cd/m²
HDR Peak 10% Window
What it is: TThe maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the monitor 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
:
420 cd/m²
HDR Peak 25% Window
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 monitor 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
:
420 cd/m²
HDR Peak 50% Window
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 monitor 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
:
420 cd/m²
HDR Peak 100% Window
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 monitor 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
:
420 cd/m²
HDR Sustained 2% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the monitor 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
:
418 cd/m²
HDR Sustained 10% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the monitor 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
:
419 cd/m²
HDR Sustained 25% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the monitor 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
:
419 cd/m²
HDR Sustained 50% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the monitor 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
:
419 cd/m²
HDR Sustained 100% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the monitor 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
:
419 cd/m²
HDR ABL
What it is: The coefficient of variation 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
:
0.000

Decent peak brightness in HDR, better than the Samsung CHG70. The peak brightness remains the same regardless of content, which is great, but as there is no local dimming feature, small highlights in some scenes don't stand out as much.

For HDR to work over DisplayPort, '1.2+HDR' must be enabled from the monitor's OSD.

7.5 Horizontal Viewing Angle
What it is: Color accuracy when viewed from the side.
Gigabyte  Aorus AD27QD Horizontal Color Shift Picture
Color Shift from Left
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left
Good value: > 50°
Noticeable difference: 10°
:
44 °
Color Shift from Right
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right
Good value: > 50°
Noticeable difference: 10°
:
42 °
Gigabyte  Aorus AD27QD Horizontal Brightness Picture
Brightness from Left
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left.
Good value: > 50°
Noticeable difference: 10°
:
51 °
Brightness from Right
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
49 °
Gigabyte  Aorus AD27QD Horizontal Black Level Picture
Black Level from Left
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Right
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Curve Radius : N/A

The AD27QD has good horizontal viewing angles. When viewing at an angle, the contrast remains about the same, but the brightness and color accuracy gradually decrease as you move off angle. These results are about average for IPS monitors, and much better than their VA counterparts, like the Samsung CHG70.

7.8 Vertical Viewing Angle
What it is: Color accuracy when viewed from the top or bottom.
Gigabyte  Aorus AD27QD Vertical Color Shift Picture
Color Shift from Below
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
24 °
Color Shift from Above
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor when standing up.
Good value: > 50°
Noticeable difference: 10°
:
25 °
Gigabyte  Aorus AD27QD Vertical Brightness Picture
Brightness from Below
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
31 °
Brightness from Above
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
32 °
Gigabyte  Aorus AD27QD Vertical Black Level Picture
Black Level from Below
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Above
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
75 °

When looking at the AD27QD from above or below, the image degrades more rapidly than the horizontal axis, but this is still about average for an IPS monitor. Again, the contrast stays about the same at any angle, but the brightness decreases and colors lose accuracy.

8.5 Gray Uniformity
What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
Gigabyte  Aorus AD27QD 50% Uniformity Picture
50% Std. Dev.
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%
:
3.619 %
50% DSE
What it is: Dirty Screen Effect. 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%
:
0.110 %
Gigabyte  Aorus AD27QD 5% Uniformity Picture
5% Std. Dev.
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%
:
0.534 %
5% DSE
What it is: Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.060 %

The AD27QD has excellent gray uniformity, similar to the PG279Q and PG279QZ. There is very little dirty screen effect, great for browsing the web, or any other content with large uniform areas.

2.7 Black Uniformity
What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
Gigabyte  Aorus AD27QD Native Black Uniformity Picture
Native Std. Dev.
What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: <2%
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.
:
4.231 %
Std. Dev. w/ L.D.
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: <2%
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.
:
N/A

Unfortunately, the AD27QD has bad black uniformity. There is noticeable backlight bleed and clouding throughout the screen.

8.6 Pre Calibration
What it is: Monitor's color accuracy before a full calibration. The measurements are taken with out of the box 'factory setting'.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
Gigabyte  Aorus AD27QD Pre Calibration Picture Gigabyte  Aorus AD27QD Pre Gamma Curve Picture Gigabyte  Aorus AD27QD Pre Color Picture
Picture Mode
What it is: The picture mode that was used to do the pre-calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Standard
Luminance
What it is: The luminance at which the pre-calibration reading was done. This represents the luminance of the monitor when it is at the factory default settings.
:
373 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
80
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
50
RGB controls
What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
100-100-100
Color Temperature
What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
6199 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
2.20
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.61
Gamma
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
:
2.11

Out of the box, the Aorus AD27QD has outstanding accuracy, slightly worse than the ASUS ROG Swift PG279Q. Gamma follows the target curve, but is slightly low, causing most scenes to appear slightly too bright. Colors have excellent accuracy, below the threshold that most people are able to see, and the white point is very close to the target.

Strangely, the most accurate gamma is with the gamma setting set to Off.

9.6 Post Calibration
What it is: Monitor's color accuracy after a full calibration with a spectrophotometer.
When it matters: All graphics and video content on a monitor that has been professionally calibrated.
Score components:
Gigabyte  Aorus AD27QD Post Calibration Picture Gigabyte  Aorus AD27QD Post Gamma Curve Picture Gigabyte  Aorus AD27QD Post Color Picture
Picture Mode
What it is: The picture mode that was used to do the calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Standard
Luminance
What it is: The luminance at which the calibration was executed. We aim for a luminance level of 100 cd/m².
:
100 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
12
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
49
RGB Controls
What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
92-93-100
Color Temperature
What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
6497 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.71
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
0.57
Gamma
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
:
2.19

After calibration, any remaining inaccuracies are too small to be noticeable, and gamma follows the curve almost perfectly. Strangely, the most accurate Gamma setting is Off.

You can download our ICC profile calibration here. This is provided for reference only and should not be used, as the calibration values vary per individual unit even for the same model due to manufacturing tolerances.

9.2 SDR Color Gamut
What it is: The palette of colors the monitor can display
When it matters: General content consumption or production
Score components:
Gigabyte  Aorus AD27QD Color Gamut sRGB Picture
sRGB xy
What it is: Coverage of the sRGB colorspace on CIE 1931 xy.
When it matters: Almost all content. Includes websites, standard windows environment and SDR movies
Good value: > 95%
Noticeable difference: 5%
:
98.8 %
Gigabyte  Aorus AD27QD Color Gamut ARGB Picture
Adobe RGB xy
What it is: Coverage of the Adobe RGB colorspace on CIE 1931 xy.
When it matters: Professional photography.
Good value: > 90%
Noticeable difference: 5%
:
84.2 %

s.RGB Picture Mode: Standard (calibrated)
Adobe RGB Picture Mode: Standard

The AD27QD covers the s.RGB color space almost entirely, which is great. In the wider Adobe RGB color space, it can't display the full range of greens, which isn't ideal for professional photo editing.

9.4 SDR Color Volume
What it is: How much of the SDR color spaces the monitor can reproduce
When it matters: General usage and SDR media creation
Score components:
Gigabyte  Aorus AD27QD sRGB Color Volume ITP picture
sRGB in ICtCp
What it is: How much of the sRGB colorspace a monitor can display at different luminosity levels
When it matters: Most content, including web, SDR video games, and SDR media creation
:
97.5 %
Gigabyte  Aorus AD27QD Adobe RGB Color Volume ITP Picture
Adobe RGB in ICtCp
What it is: How much of the Adobe RGB colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness.
When it matters: Professional media creation
:
89.6 %

s.RGB Picture Mode: Standard
Adobe RGB Picture Mode: Standard

Excellent SDR color volume, limited mainly by the mediocre native contrast ratio, although it can't produce very bright blues.

6.8 HDR Color Gamut
What it is: The monitor's ability to reproduce HDR color spaces
When it matters: HDR content consumption or media creation
Score components:
Wide Color Gamut
What it is: Whether the monitor can support wider color gamuts
When it matters: HDR content and media creation
:
Yes
Gigabyte  Aorus AD27QD Color Gamut DCI-P3 Picture
DCI P3 xy
What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy
When it matters: When consuming or producing HDR content.
:
70.4 %
Gigabyte  Aorus AD27QD Color Gamut Rec.2020 Picture
Rec. 2020 xy
What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: When consuming or producing HDR content.
Good value: > 90%
Noticeable difference: 5%
:
66.3 %

DCI P3 Picture Mode: Standard
Rec. 2020 Picture Mode: Standard

Decent wide HDR color gamut, but it can't display the full range of any color, so HDR content doesn't look much different from SDR content.

6.6 HDR Color Volume
What it is: How much of the HDR color spaces a monitor can display at different luminosity levels.
When it matters: HDR content consumption and production. Includes streaming services, UHD Blu-rays and HDR games.
Score components:
Gigabyte  Aorus AD27QD P3 Color Volume ITP Picture
DCI-P3 in ICtCp
What it is: How much of the DCI-P3 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80%
Noticeable difference: 5%
:
71.6 %
Gigabyte  Aorus AD27QD 2020 Color Volume ITP Picture
Rec. 2020 in ICtCp
What it is: How much of the Rec. 2020 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80 %
Noticeable difference: 5 %
:
61.2 %

DCI P3 Picture Mode: Standard
Rec. 2020 Picture Mode: Standard

Decent HDR color volume. The AD27QD can't display the full range of HDR colors, and it can't produce deep, dark colors very well, due to the limited contrast ratio. Like with SDR content, it can't produce very bright blues, either.

10 Image Retention
What it is: How much a static image is retained on a monitor screen after a certain amount of time.
When it matters: When working or playing video games on your PC monitor.
Gigabyte  Aorus AD27QD Image Retention Picture
IR after 0 min recovery
What it is: Image retention measured right after the static image exposure, without recovery time.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 2 min recovery
What it is: Image retention measured after a recovery time of 2 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect
Noticeable difference: 0.015%
:
0.00 %
IR after 4 min recovery
What it is: Image retention measured after a recovery time of 4 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 6 min recovery
What it is: Image retention measured after a recovery time of 6 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 8 min recovery
What it is: Image retention measured after a recovery time of 8 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 10 min recovery
What it is: Image retention measured after a recovery time of 10 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %

There are no signs of image retention on the AD27QD, even immediately after displaying our high contrast static test image for 10 minutes.

9.7 Gradient
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
Gigabyte  Aorus AD27QD Gradient Picture
Color Depth
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 HDR video games or HDR UHD movies. Won't matter for regular Blu-ray movies, SDR video game or desktop environment content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
10 Bit

The AD27QD has excellent gradient handling, with almost no signs of banding. It supports a 10-bit color input, but only when the refresh rate is set to 120Hz. When the monitor is set to 144Hz, it only supports 8-bit color, and there is a bit more banding visible.

7.5 Color Bleed
What it is: How much the color from one area of the screen affects the color in another area of the screen.
When it matters: All usages, but especially media creation.
Score components:
Gigabyte  Aorus AD27QD Color bleed horizontal
Pixel row error
What it is: The amount of bleed that appears across the screen horizontally.
When it matters: General usage of a PC monitor, can appear when browsing the web or with media creation like graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.000 %
Gigabyte  Aorus AD27QD Color bleed vertical
Pixel column error
What it is: Amount of color bleeding that appears across the screen vertically.
When it matters: Most uses of a PC monitor. Can appear while browsing the web or when editing images or graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.502 %

Unfortunately, there is noticeable vertical color bleed, by far the worst of any monitor we've tested so far. This shouldn't be noticeable with most content, but it isn't ideal for photo editing.

7.0 Reflections
What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
Gigabyte  Aorus AD27QD Average room Gigabyte  Aorus AD27QD Average room off picture Gigabyte  Aorus AD27QD Bright room off picture

Decent reflection handling overall. There shouldn't be any significant issues in a brightly lit office, but if you have a lot of large windows the reflections are more distracting.

9.2

Motion

Score components:

The Aorus AD27QD has excellent motion handling. It has an extremely fast response time, so there is almost no blur trail behind fast-moving objects. The backlight is flicker-free, which is great, and there is an optional Black Frame Insertion feature to reduce persistence blur, although this does cause duplications and has a few minor glitches. The excellent refresh rate should please even the most demanding gamers. It supports FreeSync, and has a wide variable refresh rate range, ensuring a tear-free gaming experience.

9.5 Motion Blur
What it is: The performance of the pixel response time. Poor response time causes trails to follow moving objects. Response time is one of a few sources of motion blur.
When it matters: When there's fast movement on screen, such as during video games and sports.
Score components:
Gigabyte  Aorus AD27QD Motion Blur Picture Gigabyte  Aorus AD27QD Response Time Chart
80% Response Time
What it is: How quickly pixels can reach 80% of a full transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 8 ms
Noticeable difference: 4 ms
:
3.7 ms
100% Response Time
What it is: How quickly pixels can fully transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 20 ms
Noticeable difference: 10 ms
:
9.3 ms
Best Overdrive Setting
What it is: If the monitor has adjustable pixel overdrive settings, which one produces the best response time with minimal overshoot.
When it matters: When adjusting the monitor's settings to get the least possible motion blur.
:
Speed

Overdrive Picture Quality
Overdrive Balance
Overdrive Speed

The AD27QD has an outstanding fast response time, with only minor overshoot and very little motion blur. Some inverse ghosting can be seen due to the overdrive; if this bothers you, the 'Overdrive Balance' or 'Overdrive Picture Quality' modes have no overshoot, but the response time is slower.

9.0 Image Flicker
What it is: Luminosity pattern when displaying images
When it matters: Nearly all the time during PC monitor use, but especially during fast movement such as video games
Gigabyte  Aorus AD27QD Backlight Picture
Flicker-free : Yes
PWM Dimming Frequency
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.
:
0 Hz
Black Frame Insertion (BFI)
What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in motion
Good value: Yes
:
Yes
Gigabyte  Aorus AD27QD BFI Picture Gigabyte  Aorus AD27QD BFI Frequency Picture
BFI Maximum Frequency
What it is: Highest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: Matches the native refresh rate
Noticeable difference: 20 Hz
:
144 Hz
BFI Minimum Frequency
What it is: Lowest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: 60 Hz
Noticeable difference: 20 Hz
:
120 Hz

The backlight is completely flicker-free, but has an optional black frame insertion feature, which is rare for FreeSync monitors. BFI can be activated by enabling the Aim Stabilizer feature, and is only supported at 120 Hz or 144 Hz.

We noticed a few bugs with the BFI feature, but they are easy to work around. When first enabled, the BFI feature causes the brightness to drop from 100 cd/m² to 32 cd/m². A brightness drop is normal with BFI, but this is a bit worse than average. Disabling and then enabling it causes the brightness to increase back up to 135 cd/m², and the image appears much brighter but has noticeable duplications, as seen here.

9.2 Refresh Rate
What it is: How frequently the monitor can refresh and show new frames, and whether it can vary its refresh rate in real time using technologies like G-sync and FreeSync.
When it matters: Mostly for gaming, but does provide a little better motion during normal usage.
Native
What it is: The frequency at which the monitor is capable of displaying images every second
When it matters: General usage, but better results are most important for gaming
Good value: >100 Hz
Noticeable difference: 15 Hz
:
144 Hz
Factory Overclock
What it is: The frequency at which the monitor's can be boosted to using its internal menu.
When it matters: Gaming and other usages where high frame rate content is consumed.
Good value: >100
Noticeable difference: 15
:
N/A
Variable Refresh Rate
What it is: Feature that allows the monitor to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable in gaming where constant fluctuation in framerate cause distracting artifacts.
:
FreeSync
G-SYNC Compatible
What it is: We test for FreeSync compatibility with an NVIDIA GTX1060. We check for any excess blur, screen blanking, or excess tearing, and confirm the variable refresh rate range.
When it matters: If you have an NVIDIA graphics card.
Good value: Yes
:
Yes (NVIDIA Certified)
VRR Maximum
What it is: The maximum frequency covered by the Variable Refresh Rate feature of the monitor.
When it matters: Any time the VRR feature is enabled.
Good value: Matches Refresh rate
Noticeable difference: 10 Hz
:
144 Hz
VRR Minimum
What it is: The lowest frequency covered by the monitor's Variable Refresh Rate feature.
When it matters: When using the VRR feature of the monitor at lower frame rates.
Good value: 30 Hz
:
< 20 Hz
VRR Maximum With OC
What it is: The maximum frequency covered by the Variable Refresh Rate feature when the monitor's overclocking feature is used.
When it matters: When both the overclocking and VRR features are used.
Good value: Matching the overclocked refresh rate.
Noticeable difference: 10 hz
:
N/A
VRR Supported Connectors : DisplayPort, HDMI

Update 04/24/2019: NVIDIA released GeForce driver 430.39, which adds the AD27QD as an NVIDIA certified G-SYNC compatible monitor. With this update, FreeSync is automatically enabled when connected to a 10- or 20- series NVIDIA graphics card.

Update 11/03/2019: We tried the AD27QD with an Xbox One S, and were unable to enable FreeSync.

The Aorus AD27QD supports FreeSync over both HDMI and DisplayPort, with the same excellent VRR range with either connector. We tested it with NVIDIA's new FreeSync drivers on our GTX 1060 6 Gb, and it works perfectly, but only when connected via DisplayPort. This is the same as all other G-SYNC compatible monitors.

Unlike many 144 Hz monitors, there is no factory overclock.

9.1

Inputs

Score components:

The Aorus AD27QD has excellent low input lag, and is a great choice for both console and PC gamers. The 1440p resolution and 27" screen deliver a more detailed, immersive image than standard 1080p monitors, and it has a good selection of inputs.

9.6 Input Lag
What it is: Delay between input and onscreen reaction.
When it matters: General usage of the mouse and gaming.
Native Resolution
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at its native refresh rate.
When it matters: General usage and while playing video games.
Good value: < 15 ms
Noticeable difference: 5 ms
:
4.1 ms
Non-Native Res @ Native Refresh
What it is:

Lowest input lag possible at the center of the screen, when the monitor is displaying an alternative resolution at its native refresh rate. The non-native resolution tested depends on the native resolution of the monitor, following this pattern unless otherwise specified in the Input Lag text:

Native Resolution Non-Native Resolution Tested
4k UHD QHD
QHD FHD
FHD 1600x900
3440x1440 2560x1080
2560x1080 1920x1080
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
N/A
Native Resolution @ 60 Hz
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at a refresh rate of 60 Hz.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
8.7 ms
Variable Refresh Rate
What it is: Lowest input lag possible at the center of the screen, when the monitor is using its Variable Refresh Rate feature at its native resolution.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
4.5 ms
HDR
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying an HDR signal at its native resolution and refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
3.9 ms
Black Frame Insertion (BFI)
What it is: Lowest input lag possible at the center of the screen, when BFI is enabled and the monitor is displaying a signal at the highest supported BFI refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
4.8 ms

Excellent low input lag, great for gaming. Even with HDR or VRR enabled, the input lag remains extremely low, which is great for even the most demanding gamers.

8.4 Resolution and Size
What it is: The number of pixels the monitor can display, and the surface area of its screen.
When it matters: All usages, but especially for office and media editing.
Score components:
Native Resolution : 2560 x 1440
Aspect Ratio : 16:9
Megapixels : 3.7 MP
Pixel Density : 109 PPI
Screen Diagonal : 27.0 inches
Screen Area : 310 sq inches

The 27", 1440p screen is great for multitasking and provides a slightly more immersive gaming experience than standard 1080p monitors.

Inputs
Total Inputs
DisplayPort : 1 (DP 1.2)
Mini DisplayPort : No
HDMI : 2 (HDMI 2.0)
DVI : No
VGA : No
DisplayPort Out : No
USB : 2 (USB 3.0)
USB C : No
Analog Audio Out 3.5mm : 1
Microphone In 3.5mm : 1
Digital Optical Audio Out : No
Analog Audio Out RCA : No

The AD27QD has a great selection of inputs, with two HDMI 2.0 ports and 1 DisplayPort connection. It also has a microphone-in port, which is necessary to use the ANC feature.

Features

The AD27QD has an impressive array of additional features. The available Dashboard software allows you to control almost any aspect of the monitor, without having to access the monitor's OSD. You can also configure hotkeys, allowing you to quickly change modes with a few keystrokes. There are numerous optional overlays, including custom crosshairs and the ability to display your computer's vital stats directly on the monitor. It supports both picture-in-picture and picture-by-picture modes, which is great. In the box, you'll find both HDMI and DisplayPort cables, as well as power cables so you can take your monitor with you almost anywhere in the world.

Additional Features
What it is: Additional features found on the monitor
Speakers
What it is: Whether or not the monitor features standalone speakers.
When it matters: When using your computer without headphones or a dedicated pair of speakers.
:
No
HDR10 : Yes

The Aorus AD27QD has an impressive array of additional features, too many to list here. Some of the most useful features include:

  • ANC: The Aorus is the first monitor on the market to feature active noise cancellation. Note that this is not for your benefit, but for the benefit of the people you are talking to. The monitor has three integrated microphones that measure the ambient noise and attempt to remove it from your voice. This requires your microphone be connected to the back of the monitor, and the USB upstream port connected to your computer. In our tests, the ANC was very effective at removing ambient bass sounds, such as the rumble of a nearby air conditioner. We also found that it acted a bit like a noise gate, and would occasionally cut off the speaker's voice. We have recorded a short clip demonstrating the ANC feature, available here. Note that this is recorded using an internet voice chat program, and there is compression.
  • Dashboard: A customizable overlay that displays your computer's status, including temperatures, fan speeds, and usage.
  • Black Equalizer: Similar to the Black Stabilizer feature found on many other gaming monitors, this allows you to adjust the image to make it easier to spot objects in dark scenes.
  • This is just a summary of the additional features. For more information, see our additional review notes.

On-Screen Display (OSD)
Controls
Gigabyte  Aorus AD27QD Controls picture

The controls are easy to access and easy to use. The monitor uses a joystick control, similar to LG monitors like the 27UK650.

In The Box
Gigabyte  Aorus AD27QD In The Box picture

  • Instruction manual and driver & utility disc
  • Three different power cables, for NA, EU, and Australia.
  • HDMI Cable
  • DisplayPort Cable
  • USB 3.0 Type B upstream cable

Differences between Sizes and Variants

We tested the Aorus AD27QD, which is the only size available, and the only monitor made by Gigabyte's Aorus gaming division.

If someone comes across a different type of panel or if their AD27QD doesn't correspond to our review, let us know and we will update the review. Note that some tests, such as the gray uniformity, may vary between individual units.

Model Size Resolution Refresh Rate Notes
AD27QD 27" 2560x1440 144 Hz  

The AD27QD we reviewed was manufactured in Dec. 2018.

Compared to other Monitors

Gigabyte  Aorus AD27QD Group Shot Picture
Left: Dell S2719DGF. Middle: Aorus AD27QD. Right: ASUS ROG PG279Q
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Aorus AD27QD is an impressive gaming monitor at an aggressive price, and has some great additional features. See our recommendations for the best gaming monitors, the best 1440p 144Hz monitors, and the best monitors for photo editing.

ASUS ROG Swift PG279Q

The Aorus AD27QD and ASUS ROG PG279Q are very similar overall. The PG279Q has slightly better black uniformity, and supports NVIDIA's G-SYNC variable refresh rate technology. The AD27QD supports HDR, has much better gradients, and supports AMD's FreeSync technology with both AMD cards and NVIDIA's new FreeSync compatible drivers, making it a slightly more versatile choice if you have a 10- or 20- series NVIDIA GPU.

Acer Predator XB271HU

The Gigabyte AD27QD is better than the Acer Predator XB271HU. The Gigabyte AD27QD supports HDR content and has a wide color gamut that can display rich and saturated colors. The Gigabyte AD27QD can handle reflections better and supports the FreeSync variable refresh rate technology for tear-free gaming. The Acer, on the other hand, has more uniform blacks and slightly better ergonomics. The Predator supports the G-SYNC variable refresh rate, which is great if you have a compatible NVIDIA graphics card.

ASUS ROG Swift PG279QZ

Unless you want to get the most out of your NVIDIA graphics card, the Aorus AD27QD is slightly better than the ASUS PG279QZ. The Aorus supports HDR, and has a few extra gaming features designed to give you a slight edge in competitive games, and it supports FreeSync. Although the Aorus also works with NVIDIA's new FreeSync drivers, if you want a true G-SYNC experience, the ASUS is very similar overall.

Samsung CHG70

The Samsung CHG70 and the Aorus AD27QD use different panels, and each is better for certain uses. The CHG70 uses a VA panel, which is better suited for dark room viewing, but the image degrades when viewed at an angle. The AD27QD, on the other hand, uses an IPS panel, and the image remains accurate when viewed at an angle. That said, it produces grayish blacks and generally doesn't look as good in a dark room.

LG 27UK650-W

The Gigabyte AD27QD is marginally better than the LG 27UK650. The Gigabyte AD27QD has a lower input lag and a much higher refresh rate, which will please most gamers. The Gigabyte AD27QD also supports a Black Frame Insertion feature that can make the image crisper. The LG 27UK650 has a full 4k resolution and allows you to see more details on your screen.

ASUS VG279Q

The Aorus AD27QD is slightly better than the ASUS VG279Q. The AD27QD supports HDR, although there isn't much benefit to this. The AD27QD also has a higher native resolution, delivering a more immersive, detailed gaming experience. The VG279Q, on the other hand, has much better ergonomics and slightly better black uniformity.

AOC AGON AG271QX

The Aorus AD27QD is much better than the AOC AGON AG271QX. The Aorus supports HDR, which is great, and has much wider viewing angles. The AD27QD also has an optional black frame insertion feature, which can help reduce persistence blur. The AGON has better black uniformity and a slightly faster response time, but this likely isn't noticeable. The AGON also has more inputs and supports older analog inputs from DVI and VGA cables.

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Conclusion
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8.0Mixed Usage
Score components:
The AD27QD is a great monitor for most uses. It has wide viewing angles, great ergonomics, and great peak brightness. Gamers will appreciate the fast response time, FreeSync support, and low input lag. It has an impressive array of additional features that make it easy to customize your viewing experience.
Great monitor for office use. It has wide viewing angles and great ergonomics, making it easy to place it in an ideal viewing position or share your work. It has a large, high resolution screen that is great for multitasking, and it supports both picture-in-picture, and picture-by-picture modes.
The Aorus AD27QD is an excellent monitor for gaming. It has a fast response time that delivers excellent clear motion, and an optional black frame insertion feature. It has low input lag, and supports FreeSync over both HDMI and DisplayPort. The additional gaming features make it easy to adjust the monitor so you can perform your best.
Very good monitor for multimedia. The image remains accurate when viewed at an angle, which is great for sharing the latest trends with a group of friends. The fast response time delivers clear motion, with very little blur trail. Unfortunately, it isn't as well-suited for watching videos in a dark room though, as it has a mediocre contrast ratio and poor black uniformity.
The AD27QD is great for media creation. It has an excellent SDR color gamut, and great coverage of the wider Adobe RGB color space. The 27" screen and 1440p native resolution allows you to see more of your work at once, so you spend less time scrolling around or zooming. Unfortunately, it has bad color bleed that could cause issues for photo editing.
The Aorus AD27QD is a decent monitor for HDR gaming. It has decent peak brightness in HDR, but small highlights in some scenes aren't as bright as they should be. It can display a wide color gamut, which is great. Unfortunately, there is no local dimming feature, and it has a mediocre native contrast ratio.

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