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Vizio P Series Quantum 2020 TV Review

Tested using Methodology v1.5
Updated Oct 29, 2020 at 11:32 am
Vizio P Series Quantum 2020 Picture
8.1
Mixed Usage
Value for price beaten by
: Hisense H9G
8.1
Movies
Value for price beaten by
: Hisense H9G
7.9
TV Shows
Value for price beaten by
: Hisense H9G
7.9
Sports
Value for price beaten by
: Hisense H9G
8.5
Video Games
Value for price beaten by
: none
8.2
HDR Movies
Value for price beaten by
: Hisense H9G
8.6
HDR Gaming
Value for price beaten by
: none
8.1
PC Monitor
Value for price beaten by
: Sony X800H
Current deal: The Vizio P Series Quantum 2020 65” has dropped by $300 on Costco.com. See all Black Friday deals on TVs.
Type LED
Sub-Type
VA
Resolution 4k

The Vizio P Series Quantum 2020 is an overall good 4k TV. Like its predecessor, the Vizio P Series Quantum 2019, it sports a VA panel that can display deep blacks, and it has a full-array local dimming to improve black level further, making it a great choice for dark room viewing. It's also well-suited for bright rooms thanks to its high peak brightness and good reflection handling. It has a fast response time, an optional Black Frame Insertion feature, and can interpolate lower frame rate content up to 120 fps for fans of the soap opera effect. Its input lag is very low and supports variable refresh rate technology to reduce screen tearing when gaming. Unfortunately, its narrow viewing angles make it less ideal for large rooms and wide seating areas, as the image looks washed out from the sides. Also, its local dimming causes blooming around bright objects, which can be distracting. On the upside, it delivers a great HDR experience, as it has an excellent color gamut and gets bright enough to make highlights stand out.

Update 10/26/2020: We've reuploaded some of the photos due to the presence of a moire pattern.

Our Verdict

8.1 Mixed Usage

The Vizio P Series Quantum 2020 is an overall good TV. It has a high contrast ratio that allows it to produce deep blacks, making it great for watching movies in the dark. It has an excellent HDR color gamut, a full-array local dimming feature, and gets very bright to deliver a great HDR experience. Its fast response time results in minimal motion blur in fast-moving scenes and, combined with its low input lag, it's well-suited for playing video games. Unfortunately, it has poor viewing angles, and its local dimming causes a lot of blooming.

Pros
  • High contrast ratio.
  • Gets very bright.
  • Good reflection handling.
Cons
  • Poor viewing angles.
  • Some vignetting and dirty screen effect.
8.1 Movies

The Vizio P Series Quantum 2020 is great for watching movies. It delivers good picture quality thanks to its high contrast ratio, but its full-array local dimming causes a lot of blooming, and there's clouding throughout the screen on our unit, which can be distracting. On the upside, it upscales lower resolution movies well, and it can remove judder from 24p sources and native apps.

Pros
  • High contrast ratio.
  • Can remove judder from 24p sources and native apps.
Cons
  • Blooming around bright objects and subtitles.
  • Some vignetting and dirty screen effect.
7.9 TV Shows

The Vizio P Series Quantum 2020 is good for watching TV shows. It handles reflections well, and it gets bright enough to fight glare, so you shouldn't have any issues with visibility in broad daylight. However, its VA panel's poor viewing angles cause images to look washed out when viewed from the side, making it less ideal for those who like to walk around while watching TV.

Pros
  • Gets very bright.
  • Good reflection handling.
Cons
  • Poor viewing angles.
  • Some vignetting and dirty screen effect.
7.9 Sports

The Vizio P Series Quantum 2020 is good for watching sports. It has a fast response time that results in minimal motion blur and a Black Frame Insertion feature to improve clarity further. It handles reflections well, and it gets bright enough to overcome glare in well-lit environments. The viewing angles are poor, though, which isn't ideal for watching a big game with a large group of people.

Pros
  • Gets very bright.
  • Fast response time.
  • Good reflection handling.
Cons
  • Poor viewing angles.
  • Some vignetting and dirty screen effect.
8.5 Video Games

The Vizio P Series Quantum 2020 is great for gaming. Its fast response time and 120Hz refresh rate make fast-moving scenes look crisp and buttery smooth. It has incredibly low input lag to make every action feel almost instantaneous, and it supports variable refresh rate technology to deliver a nearly tear-free gaming experience. Its VA panel can produce deep blacks, making it a good option for gaming in the dark.

Pros
  • High contrast ratio.
  • Low input lag.
  • Fast response time.
Cons
  • VRR doesn't work.
8.2 HDR Movies

The Vizio P Series Quantum 2020 is great for watching movies in HDR. It has a high contrast ratio to produce deep blacks, an excellent color gamut, and a high peak brightness to make highlights pop. However, black uniformity isn't that good on our unit, and the local dimming feature causes a lot of blooming around bright objects.

Pros
  • High contrast ratio.
  • Gets very bright.
  • Can remove judder from 24p sources and native apps.
  • Excellent HDR color gamut.
Cons
  • Blooming around bright objects and subtitles.
  • Some vignetting and dirty screen effect.
8.6 HDR Gaming

The Vizio P Series Quantum is great for gaming in HDR. It has excellent motion handling due to its fast response time and 120Hz refresh rate. Its input lag is low and remains low when playing in 4k with 10-bit HDR. Also, it supports variable refresh rate technology to reduce screen tearing. It can deliver a stunning HDR experience, as it has an excellent color gamut to produce vibrant colors and a high peak brightness to make highlights pop.

Pros
  • High contrast ratio.
  • Gets very bright.
  • Low input lag.
  • Fast response time.
  • Excellent HDR color gamut.
Cons
  • Blooming around bright objects and subtitles.
  • VRR doesn't work.
8.1 PC Monitor

The Vizio P Series Quantum 2020 is a good TV for use as a PC monitor. It has low input lag, a fast response time, and supports most common resolutions. It has excellent reflection handling and gets very bright to provide good visibility in well-lit environments. Unfortunately, its poor viewing angles make images look washed out at the edges if you sit close to the screen. Also, while it supports chroma 4:4:4, it's a little buggy right now and would require a firmware update.

Pros
  • Low input lag.
  • Fast response time.
  • Good reflection handling.
Cons
  • Poor viewing angles.
  • 8.1 Mixed Usage
  • 8.1 Movies
  • 7.9 TV Shows
  • 7.9 Sports
  • 8.5 Video Games
  • 8.2 HDR Movies
  • 8.6 HDR Gaming
  • 8.1 PC Monitor
  1. Update 11/11/2020: Corrected a mistake with the Vizio SmartCast version.
  2. Update 10/29/2020: Updated review for accuracy and clarity.
  3. Update 10/26/2020: We've reuploaded some of the photos in the review and retested the input lag, supported resolutions, and VRR with the latest firmware (version 5.10.13.1-2).
  4. Update 10/14/2020: We've retested the reflection handling and updated the score.
  5. Update 9/30/2020: Remeasured input lag and noticed uniformity issues.

Video

Test Results

perceptual testing image
Market Context
Market Context
Market Context

The Vizio P Series Quantum 2020 is the Vizio P Series Quantum 2019's successor, sitting just below their flagship LED TV, the Vizio P Series Quantum X 2020. We expect it to compete with the Sony X900H, the Samsung Q70T QLED, and the Hisense H8G.

Design
8.5
Design
Style
Curved No

The Vizio P65Q9-H1 has an excellent design and looks nearly identical to its predecessor, the Vizio P Series Quantum 2019. It's simple and clean, with thin borders on all sides.

Design
Stand

The feet are set almost as wide as the TV itself and aren't reversible, so you need a large table if you don't plan on wall-mounting it. They support the TV well, but there's still a bit of wobble.

Footprint of the 65" stand: 50.7" x 11.7"

Design
Back
Wall Mount VESA 400x400

The back is nearly identical to the Vizio P Series Quantum 2019. It's a lightly textured plastic, and there's no cable management.

Design
Borders
Borders 0.35" (0.9 cm)

The borders are thin and aren't distracting.

Design
Thickness
Max Thickness 2.68" (6.8 cm)

The TV is fairly thin and doesn't stick out much when wall-mounted.

8.0
Design
Build Quality

The build quality is great. It's entirely made out of plastic, but it feels sturdy and doesn't flex much. The stand supports the TV well, allowing for just a small amount of wobble.

Picture Quality
9.0
Picture Quality
Contrast
Native Contrast
5507 : 1
Contrast with local dimming
6125 : 1

The Vizio P65Q9-H1 has an outstanding contrast ratio and can produce deep blacks. It's better with local dimming enabled, but not by much. Note that the contrast ratio can vary between units.

7.0
Picture Quality
Local Dimming
Local Dimming
Yes
Backlight
Full-Array

The Vizio P Series Quantum has a decent full-array local dimming feature. It performs zone transitions relatively well, as it can follow slow-moving objects pretty closely, but it lags when there's faster movement. While zone transitions are visible when playing our test pattern, it isn't as bad in regular content.

There's a fair amount of blooming, more so in regular content than with our test pattern. It tends to make dark areas look grayish or over-brighten dark spots that have some form of light. It isn't always noticeable, but it can be distracting. Blooming isn't uniform, as some areas bloom more intensely than others. Unfortunately, subtitles aren't handled well. They're very bright, and there's a lot of blooming around them.

Even though the circle in our test pattern dims a lot when it's moving around quickly, it doesn't seem to be an issue in regular content. Unlike the Vizio P Series Quantum 2019, we find almost no difference between the 'Medium and the 'High' setting (local dimming is called Active Full-Array in the settings). The 'High' setting, which is the setting that we used, gets a little brighter but doesn't crush blacks as much as the 'Medium' setting.

On the 'High' setting, small highlights like stars look okay and aren't crushed. That said, there's blooming, and it doesn't happen on every star, which makes the screen look blotchy.

8.7
Picture Quality
SDR Peak Brightness
SDR Real Scene Peak Brightness
602 cd/m²
SDR Peak 2% Window
1047 cd/m²
SDR Peak 10% Window
1078 cd/m²
SDR Peak 25% Window
801 cd/m²
SDR Peak 50% Window
583 cd/m²
SDR Peak 100% Window
503 cd/m²
SDR Sustained 2% Window
1031 cd/m²
SDR Sustained 10% Window
1058 cd/m²
SDR Sustained 25% Window
798 cd/m²
SDR Sustained 50% Window
582 cd/m²
SDR Sustained 100% Window
503 cd/m²
SDR ABL
0.045

Excellent SDR peak brightness. It varies a lot depending on the scene, but overall, it's enough to overcome glare in a bright environment.

We measured the SDR peak brightness after calibration, using the 'Calibrated Dark' Picture Mode, with Backlight at max, Active Full-Array set to 'High', Gamma set to 2.2, and Color Temperature set to 'Warm'.

If you don't mind losing a bit of image accuracy, you can get a brighter picture using the 'Vivid' Picture Mode, with Backlight at max, Active Full-Array set to 'High', Gamma set to 2.2, and Color Temperature set to 'Cool'. We achieved a peak brightness of 1101 cd/m² in the 10% window using these settings.

8.1
Picture Quality
HDR Peak Brightness
HDR Real Scene Peak Brightness
797 cd/m²
HDR Peak 2% Window
1005 cd/m²
HDR Peak 10% Window
1045 cd/m²
HDR Peak 25% Window
783 cd/m²
HDR Peak 50% Window
572 cd/m²
HDR Peak 100% Window
497 cd/m²
HDR Sustained 2% Window
991 cd/m²
HDR Sustained 10% Window
1028 cd/m²
HDR Sustained 25% Window
780 cd/m²
HDR Sustained 50% Window
571 cd/m²
HDR Sustained 100% Window
495 cd/m²
HDR ABL
0.044

Great HDR peak brightness. Like in SDR, there's a lot of brightness variability when displaying different content. It can get very bright, enough to deliver a good HDR experience.

We measured the HDR peak brightness before calibration, using the 'Calibrated Dark' Picture Mode, with Backlight at max, Active Full-Array set to 'High', Gamma set to '2.2', and Color Temperature set to 'Warm'.

If you don't mind losing image accuracy, set the Picture Mode to 'Vivid', with Active Full-Array set to 'High', and Color Temperature set to 'Cool'. We achieved a peak brightness of 1090 cd/m² in the 10% window using these settings.

6.6
Picture Quality
Gray Uniformity
50% Std. Dev.
4.259 %
50% DSE
0.229 %
5% Std. Dev.
1.270 %
5% DSE
0.109 %

Update 09/30/2020: After warming up the TV for three hours to remeasure input lag, the backlight became visible and we noticed uniformity issues. You can see the photo here, but note that this is taken on a phone and not our usual camera setup. If you have this TV and notice this issue, let us know.

Gray uniformity on our unit of the Vizio P Series Quantum is okay. The corners and edges are darker, and there's visible dirty screen effect in the center. Uniformity is better in dark scenes, but still not that great, especially on the left side of the screen. Note that gray uniformity can vary between units.

5.2
Picture Quality
Viewing Angle
Color Washout
23 °
Color Shift
22 °
Brightness Loss
31 °
Black Level Raise
17 °
Gamma Shift
18 °

Like most VA panel TVs, the Vizio P65Q9-H1 has poor viewing angles, which isn't ideal for large rooms or wide seating areas. There's an Enhanced Viewing Angle feature that can help improve viewing angles slightly, but it causes spatial dithering.

8.3
Picture Quality
Black Uniformity
Native Std. Dev.
0.907 %
Std. Dev. w/ L.D.
0.486 %

Black uniformity on our unit is okay. With local dimming disabled, there's clouding throughout the screen. With local dimming enabled, the clouding isn't as noticeable, but the blooming is. Note that black uniformity can vary between units.

8.8
Picture Quality
Reflections
Screen Finish
Semi-gloss
Total Reflections
2.3 %
Indirect Reflections
0.2 %
Calculated Direct Reflections
2.1 %

Update 10/14/2020: We've retested the reflection handling and determined that the performance is more in-line with the Vizio P Series Quantum X 2020's. The score has been updated accordingly.

Good reflection handling. It handles ambient light well but struggles a bit more with direct reflections, so it's best not to place the TV opposite bright lights.

7.6
Picture Quality
Pre Calibration
White Balance dE
3.24
Color dE
2.63
Gamma
2.17
Color Temperature
6062 K
Picture Mode
Calibrated Dark
Color Temp Setting
Warm
Gamma Setting
2.2

Out-of-the-box, the Vizio P65Q9-H1 has good color accuracy. Most color inaccuracies are relatively minor, but white balance is off, and the color temperature is on the warm side, resulting in a slight reddish tint. Gamma follows the target reasonably well; however, both dark and bright scenes are over-brightened. Note that color accuracy can vary between units.

9.6
Picture Quality
Post Calibration
White Balance dE
0.21
Color dE
0.82
Gamma
2.20
Color Temperature
6488 K
White Balance Calibration
11 point
Color Calibration
Yes
Auto-Calibration Function
No

After calibration, the color accuracy is exceptional. White balance and gamma are nearly perfect, and the remaining color inaccuracies shouldn't be noticeable. The color temperature is much closer to our 6500K target.

You can see our recommended setting here.

7.0
Picture Quality
480p Input

480p content, like from DVDs, looks decent and there are no artifacts.

7.0
Picture Quality
720p Input

The Vizio P65Q9-H1 upscales 720p content, like from cable boxes, well.

9.0
Picture Quality
1080p Input

1080p content looks good, and there are no issues with the upscaling.

10
Picture Quality
4k Input

Update 10/26/2020: We've retested the Enhanced Viewing Angle feature. It now works but it causes dithering, as you can see in this photo.

4k content is displayed perfectly.

0
Picture Quality
8k Input

The Vizio P Series Quantum 2020 can't display an 8k signal.

Picture Quality
Pixels

This TV uses a BGR sub-pixel structure and may affect text clarity when using it as a PC monitor. You can read more about it here.

8.9
Picture Quality
Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
97.57 %
DCI P3 uv
98.10 %
Rec 2020 xy
77.99 %
Rec 2020 uv
82.32 %

The Vizio P65Q9-H1 has an excellent HDR color gamut. It has near full coverage of the commonly-used DCI P3 color space and great coverage of the wider Rec. 2020. The EOTF follows the PQ curve almost perfectly until the roll-off, and the 'Game' mode EOTF is nearly identical. If you find HDR content too dim, you can get a brighter image by setting the Picture Mode to 'Calibrated Dark', Active Full-Array to 'High', Gamma to '1.8', Backlight to max, and Local Contrast to 'Medium'. These settings result in a much brighter image, as you can see in this EOTF.

8.3
Picture Quality
Color Volume
Normalized DCI P3 Coverage ITP
88.6 %
10,000 cd/m² DCI P3 Coverage ITP
51.9 %
Normalized Rec 2020 Coverage ITP
76.4 %
10,000 cd/m² Rec 2020 Coverage ITP
44.6 %

Great color volume. It displays dark and saturated colors well, but it has a hard time with bright blues, which is typical for LCDs.

8.1
Picture Quality
Gradient
Color Depth
10 Bit
Red (Std. Dev.)
0.091 dE
Green (Std. Dev.)
0.099 dE
Blue (Std. Dev.)
0.086 dE
Gray (Std. Dev.)
0.151 dE

Great gradient handling. There'a bit of banding in the greens and reds, but it's most noticeable in the grays. Enabling Signal Noise in the Reduce Noise menu doesn't seem to help much.

10
Picture Quality
Temporary Image Retention
IR after 0 min recovery
0.00 %
IR after 2 min recovery
0.00 %
IR after 4 min recovery
0.00 %
IR after 6 min recovery
0.00 %
IR after 8 min recovery
0.00 %
IR after 10 min recovery
0.00 %

There are no signs of temporary image retention. Note that temporary image retention can vary between units.

10
Picture Quality
Permanent Burn-In Risk
Permanent Burn-In Risk
No

We don't expect VA panels to experience permanent image retention, as the VA panel in our long-term test appears immune.

Motion
8.5
Motion
Response Time
80% Response Time
4.1 ms
100% Response Time
8.8 ms

The Vizio P Series Quantum has excellent response time. However, there's image duplication due to the backlight's 120Hz flicker.

4.0
Motion
Flicker-Free
Flicker-Free
No
PWM Dimming Frequency
120 Hz

Update 10/26/2020: We uploaded the wrong backlight chart picture. It has been fixed.

The backlight is flicker-free when the brightness is at max, but anything below that, the backlight flickers at 120Hz.

10
Motion
Black Frame Insertion (BFI)
Optional BFI
Yes
Min Flicker for 60 fps
60 Hz
60 Hz for 60 fps
Yes
120 Hz for 120 fps
Yes
Min Flicker for 60 fps in Game Mode
60 Hz

The Vizio P65Q9-H1 has an optional Black Frame Insertion (BFI) feature to improve motion clarity. Enabling it lowers the backlight's flickering frequency to 60Hz. Unfortunately, there's terrible strobe crosstalk, resulting in image duplication. To use BFI, turn on Clear Action.

Motion
Motion Interpolation
Motion Interpolation (30 fps)
Yes
Motion Interpolation (60 fps)
Yes

This TV can interpolate lower frame rate content up to 120fps to make motion look smoother, otherwise known as the 'Soap Opera Effect'. It does a pretty good job in quiet to moderately fast-moving scenes, but there are artifacts if the action gets too intense. To interpolate 30fps content, increase Judder Reduction, and for 60fps content, increase Blur Reduction. These settings need to be adjusted depending on the content that you're watching.

6.5
Motion
Stutter
Frame Hold Time @ 24 fps
32.9 ms
Frame Hold Time @ 60 fps
7.9 ms

Due to the TV's fast response time, lower frame rate content can appear to stutter, since each frame is held for longer. If stutter bothers you, enabling motion interpolation can help.

7.8
Motion
24p Judder
Judder-Free 24p
Yes
Judder-Free 24p via 60p
No
Judder-Free 24p via 60i
No
Judder-Free 24p via Native Apps
Yes

This TV can remove judder from 24p sources and native apps, but not from 60p or 60i sources. To remove judder, enable Film Mode. Unlike the Vizio P Series Quantum 2019, setting Judder Reduction to '1' doesn't remove judder from 60p/60i sources.

8.2
Motion
Variable Refresh Rate
Native Refresh Rate
120 Hz
Variable Refresh Rate
Yes
HDMI Forum VRR
Unknown
FreeSync
Yes
G-SYNC Compatible
No
4k VRR Maximum
60 Hz
4k VRR Minimum
48 Hz
1080p VRR Maximum
120 Hz
1080p VRR Minimum
< 20 Hz
1440p VRR Maximum
N/A
1440p VRR Minimum
No VRR support
VRR Supported Connectors
HDMI

Update 10/26/2020: We've retested the VRR with the new firmware (version 5.10.13.1-2). It only works at 4k @ 60Hz, but the VRR range is smaller, from 48-60Hz. At 4k 120Hz, the screen is still tearing a lot when VRR is enabled. It doesn't work at 1440p @ 60Hz since VRR isn't available when it's a forced resolution. At 1440p @ 120Hz, enabling VRR causes visible artifacts. It can detect G-SYNC on an NVIDIA RTX 3080 graphics card, but turning on VRR causes a crash and requires resetting the PC.

The Vizio P65Q9-H1 is advertised to have HDMI Forum VRR support. However, it doesn't seem to be working at this time, even though our connected Xbox indicates that it's functioning correctly. It also caused a few crashes when enabled. We suspect that this is a bug that'll likely be fixed in a future firmware update. We'll retest it once it's available. To turn on VRR, set Game Low Latency and Variable Refresh Rate to 'On'.

Inputs
8.7
Inputs
Input Lag
1080p @ 60 Hz
13.7 ms
1080p @ 60 Hz Outside Game Mode
109.4 ms
1440p @ 60 Hz
13.7 ms
4k @ 60 Hz
13.8 ms
4k @ 60 Hz + 10 bit HDR
13.7 ms
4k @ 60 Hz @ 4:4:4
13.8 ms
4k @ 60 Hz Outside Game Mode
109.1 ms
4k @ 60 Hz With Interpolation
130.4 ms
8k @ 60 Hz
N/A
1080p @ 120 Hz
34.5 ms
1440p @ 120 Hz
N/A
4k @ 120 Hz
14.4 ms
1080p with Variable Refresh Rate
88.7 ms
1440p with VRR
N/A
4k with VRR
14.7 ms
8k with VRR
N/A
Auto Low Latency Mode (ALLM)
Yes

Update 10/26/2020: We've retested the input lag with the latest firmware (version 5.10.13.1-2). The 4k with VRR input is measured at 60Hz since VRR doesn't work at 4k @ 120Hz.

Update 09/30/2020: Remeasured the input lag at 1080p @ 60Hz because it was much lower compared to 2019 Vizio TVs and the Vizio P Series Quantum X 2020. The input lag only slightly increased and the review has been updated.

The Vizio P65Q9-H1 has excellent low input lag, a nice improvement from the Vizio P Series Quantum 2019. There aren't any results for the latency with VRR since it doesn't work correctly at this time. Motion interpolation is usable when gaming; however, it adds significant input lag and isn't recommended.

To get the lowest input lag, set Game Low Latency to 'On'. You can also set it to 'Auto' if you want to enable the 'Auto Low Latency Mode', which turns the mode on automatically when the TV detects a game launching from a compatible device. For signals that require full bandwidth, Vizio has removed the Full UHD Color settings, so there's nothing to change.

For PC use, set Game Low Latency to 'On'. Vizio has removed the 'Computer' mode.

Note: We encountered a few issues while testing the input lag. The first is that the TV skips frames when playing 1080p or 1440p content at 120Hz with Game Low Latency on. The second is that the input lag results are very inconsistent at 120Hz