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 displays deep and inky blacks, which is great for dark room viewing. It's good 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. It has low input lag; however, its advertised variable refresh rate support isn't functional at the time of writing and would require a firmware update. Like most VA panels, it has poor viewing angles, so it isn't the best for wide seating areas. 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.
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.
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.
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.
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.
The Vizio P Series Quantum 2020 is great for gaming. It has a fast response time, and its low input lag and 120Hz refresh rate provide a responsive gaming experience. It can produce deep and inky blacks, making it a good option for gaming in the dark. It's advertised to have variable refresh rate support; however, it doesn't work at this time.
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.
The Vizio P Series Quantum is great for gaming in HDR. It has a fast response time, 120Hz refresh rate, and low input lag. It can deliver a great HDR experience due to its high contrast ratio, full-array local dimming, and high peak brightness. It has variable refresh rate support to reduce screen tearing; however, it doesn't work at this time and would require a firmware update.
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 it supports most common resolutions. 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.
The Vizio P65Q9-H1 has an excellent design. It's minimalist, it has thin borders on all sides, and it looks good with the stand or mounted on the wall.
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"
The TV is fairly thin and doesn't stick out much when wall-mounted.
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.
The Vizio P65Q9-H1 has an outstanding contrast ratio and can produce inky blacks. It's even better with local dimming enabled, but not by much.
Note that the contrast ratio can vary between units.
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.
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.
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 want an even brighter image in HDR, 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.
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.
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 option in the settings menu, but it doesn't seem like it has any effect. This is likely a bug that'll be fixed in a future update.
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.
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.
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.
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.
480p content, like from DVDs, looks decent and there are no artifacts.
The Vizio P65Q9-H1 upscales 720p content, like from cable boxes, well.
1080p content looks good, and there are no issues with the upscaling.
This TV uses a BGR sub-pixel structure and may affect text clarity when using the TV as a PC monitor. You can read more about it here.
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.
Great color volume. It displays dark and saturated colors well, but it has a hard time with bright blues, which is typical for LCDs.
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.
There are no signs of temporary image retention.
Note that temporary image retention can vary between units.
We don't expect VA panels to experience permanent image retention, as the VA panel in our long-term test appears immune.
The Vizio P Series Quantum has excellent response time. However, there's image duplication due to the backlight's 120Hz flicker.
The backlight is flicker-free when the brightness is at max, but anything below that, the backlight flickers at 120Hz.
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.
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.
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.
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.
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'.
The Vizio P65Q9-H1 has excellent low input lag, a nice improvement from the Vizio P Series Quantum 2019. It only rises slightly when playing with 10-bit HDR and shouldn't be noticeable to most people. 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, as they vary wildly between each run. Testing was done on multiple computers and we couldn't get consistent results on any of them. We suspect that this is a bug; we'll retest it once an update is available.