The Vizio P Series Quantum 2020 is an overall great 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.
The Vizio P Series Quantum 2020 is an overall great 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 excellent 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.
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 excellent 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.
The Vizio P Series Quantum 2020 is a great 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.
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.
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 deep blacks. It's better with local dimming enabled, but not by much. Note that the contrast ratio can vary between units.
Update 02/15/2021: We updated the TV to the latest firmware and retested the SDR peak brightness. The 2% and 10% sustained windows became more dim, while the 25%, 50%, and 100% windows got brighter. The review has been updated.
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.
Update 12/16/2020: We've retested the local dimming with the latest firmware version 126.96.36.199-4. Not much has changed, but like the Vizio P Series Quantum X 2020, we now recommend using the 'Medium' setting as it causes less blooming than the 'High' setting.
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). We recommend using 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.
Update 02/15/2021: We updated the TV to the latest firmware and retested the HDR peak brightness. The 2% and 10% sustained windows became more dim, while the 25%, 50%, and 100% windows got brighter. The review has been updated.
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.
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.
Update 01/08/2021: We reuploaded the black uniformity photos because there was an issue with the original photos. This improved the results and the review has been updated.
The black uniformity is great. There's a bit of clouding without local dimming, and it's noticeable in the corners. However, with local dimming, there's no clouding and only a bit of blooming around the center cross. Note that black uniformity may 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 feature that can help improve viewing angles slightly, but it causes spatial dithering.
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.
Excellent reflection handling. It handles ambient light well and even though it may not be the best choice to place it opposite a window, it still performs well in bright rooms.
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 aren't many artifacts.
The Vizio P65Q9-H1 upscales 720p content, like from cable boxes, fairly well.
1080p content looks good, and there are no issues with the upscaling.
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.
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.
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.
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.
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.