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Vizio P Series Quantum X (2020) TV Review – Vizio’s Best TV Yet?

Vizio P Series Quantum X (2020) TV Review – Vizio’s Best TV Yet?

Vizio has started to release their TVs and we’ve managed to finally buy the P-Series Quantum X, Vizio’s top of the line 4k LED TV. Last year Vizio had some great TVs, and now we get to see what’s new, what’s different and what’s better, if any.

Hey, I’m Alex, a tester here at RTINGS.com where WE HELP PEOPLE FIND THE BEST PRODUCTS FOR THEIR NEEDS Make sure you subscribe to our channel for the latest videos, or check out our website for the full review! The P Series Quantum X is a great TV, but we’ve discovered a few issues and bugs with our model.

These types of issues seem to be prevalent, but we’ll discuss them as they become relevant through the rest of the video. We actually filmed this video two weeks ago, but there was a major update the day before we planned to publish it.

So we decided to delay the video so we could properly retest some aspects of the TV and have it as up to date as possible. We’ll start by looking at the design of the TV and then move on to the picture quality.

We’ll look at the motion handling, input lag, and sound, and then compare to other competing models which are currently available. If you’d like to skip straight to our test results, then see the links in the description below.

We bought the 75” model to test, but it is also available in 65”. We expect this smaller size to have very similar picture quality. Vizio is also expected to launch an 85” model, but as of this video, it has not been released.

We expect it to have more local dimming zones, but that overall it will perform similarly. The P Series Quantum X 2020 design is simple, but nice. It looks almost identical to the other Vizio models of this year.

It’s got thin borders on all four sides and a nice thin silver bezel that gives it a premium look from the front. On the backside, it’s all plastic but it’s still well put together. The stand is pretty simple and keeps the TV stable, but unfortunately it doesn’t have any sort of cable management on the feet or on the back.

Looking at the inputs, on paper, they look good. It has 4 HDMI 2.1 ports, but only two of them are labelled as high refresh rate ports, which should be great if you plan on getting a PS5 or Xbox Series X.

However, as I’ll mention later in the review, we had a lot of trouble getting VRR and the High Refresh Rate to work properly, so hopefully there’s a firmware update in the future that can fix these issues.

Moving on, it also has one USB, a digital out, an Analog RCA out, a TV Tuner, an ethernet port, and a composite in. The TV supports HDR10, HDR10+, and Dolby Vision. If you’re interested in learning more about HDR formats, take a look at the article above.

And for audio, it supports ARC and eARC, so it can send a DTS or Dolby Atmos signal via HDMI. Overall, it’ll support many different setups. Now we’ll move on to the picture quality. To begin, there is a major issue with our model, where there is a reddish tint to the picture.

It is possible to fix this through calibration, but it requires a lot of patience and a lot of adjustments, which introduces artifacts like posterization and other color issues. As a result, we decided not to create more issues.

Unfortunately, we’ve heard reports of others experiencing the same problem. Let us know if you’ve seen this issue in your model! We’ll be comparing to currently available TVs but competing models may change as new TVs are released throughout the year.

For an updated comparison with new models as we buy and test them, see the review page on our website which is linked below. We’ll start with the contrast ratio, which is the relative luminance between the darkest black and the brightest white that a TV can display.

A high contrast ratio will show deep blacks that can make darker scenes appear to have more details. We recorded a good score of 5078:1 contrast ratio for our panel. When local dimming is enabled, it almost tripled the contrast ratio to 14345:1, which is excellent! Speaking of local dimming, it’s a great way to improve the contrast ratio since the technology allows for zones in a backlight to be individually turned on and off.

The P Quantum X 2020 has a good implementation of this technology. It has some blooming, although not quite as much as the P Quantum 2020. This may be due to the higher amount of backlight zones on the P Quantum X 2020.

It also has an issue with star fields, where it seems to have difficulty deciding what is and is not a star, and prioritizes close knit groups of stars, which can unfortunately make the screen seem a bit blotchy.

The subtitles are very bright and cause some blooming, especially in darker scenes. We recommend setting it to Medium. Now, let’s check out the viewing angles, which is how well the image keeps it’s quality at various angles.

The P Quantum X 2020 has a VA panel, which is notorious for having the worst viewing angles. The TV also has an Enhanced Viewing Angle feature. Unfortunately, it doesn’t change the results of the viewing angle test by much and it causes the TV to have spatial dithering.

While some people may not have an issue with this, the image does deteriorate at small angles off-axis, so it may not be the best choice for a large group setting. We’ll move on to the gray uniformity, which is how even colours are across the display.

This is important in since it can make the screen look blotchy. Other than the same issue with the reddish tint on our panel, the gray uniformity is quite good. At first glance, it seems to handle the uniformity very well, but there’s a lighter strip in the center of the panel.

It’s very difficult to see in normal content, but on static colors it becomes clearer to see. We don’t expect it to be an issue in regular scenes. Let us know if you’ve seen this issue in your panel! Our black uniformity checks to see the evenness of the screen and looks for backlight bleed or clouding.

Our unit scored quite well on this test and doesn’t have too much backlight bleed. There is a little bit of clouding as well, but the previously mentioned lighter strip in the panel seems to disappear on this image.

It’s important to keep in mind that black and gray uniformity vary wildly due to manufacturing tolerances. Now onto the reflection handling which is important if you plan on having the TV in a bright room.

Overall, it does a good job at handling reflections due to the semi-gloss coating on the panel. It handles ambient light fairly well, but struggles with direct light, so try not to put it across from a window.

Another way to help combat glare is the peak brightness. The brighter the TV, the more it can help against glare and the more vibrant and colourful scenes can appear. In SDR, the P Quantum X 2020 performs very well, showing off 672 nits in our real scene test and going as high as 1924 nits on a 10% window.

This will help immensely if you have your TV in a bright room. In HDR content, the peak brightness is even more important to create those vibrant, poppy colours. Just like in SDR, the HDR peak brightness is excellent.

The real scene peak brightness sits at 1039 nits and can get as bright as 2043 nits on a 10% window. The real scene peak brightness being almost double that of the SDR is what makes it really pop and look great.

That said, whether you watch mostly SDR or HDR content, you won’t be disappointed in the brightness of this TV. We’ll move on to the color volume and the color gamut. The color gamut is the range of colors that the Tv can display.

Having a wide color gamut means that the TV is able to display all the colors that HDR is mastered for. Thankfully, the P Series Quantum X 2020 has a wide color gamut. It covers 94% of the DCI-P3 color gamut which will be amazing for those who want to experience all the colors that HDR is mastered for.

The color volume is the range of colors that the TV can display at different brightness levels. We measured a great color volume on this TV and because of how bright it can get, it’s certain to make an excellent HDR viewing experience.

Now we’ll look at the motion handling of the TV and we’ll start with the response time. Response time is the time it takes for the TV to change from color to color. A slower response time shows up as a blurry trail behind fast moving objects, which is also known as ghosting.

Having a fast response time is important when watching sports or playing games, since it can help to have motion look more clear. The P series Quantum X 2020 has a pretty good response time, but unfortunately there is a little bit of overshoot, meaning you may see some ghosting depending on the content.

There is an optional Black Frame Insertion feature on this TV, which will insert black frames between the original frames of a source in order to smooth out motion. The Vizio’s BFI can force the TV to flicker at 60Hz, instead of the normal 120Hz it has.

It handles the BFI well, with little crosstalk issues and doesn’t darken the screen due to a brightness compensation. Let’s take a look at the input lag of the P Quantum X 2020. This is very important for gamers since it is the time it takes for an action done outside of the TV to produce the intended effect on the display, such as a push on a button on a game console’s controller.

The lower the input lag, the more responsive and fluid the gaming experience will feel. We measured 14ms on this TV with Game Low Latency enabled, so you’re not likely to notice any lag at all. The TV does support 120Hz for 1080p and 1440p, but unfortunately it doesn’t work properly with Game Low Latency enabled.

It caused the TV to skip frames and gave us very inconsistent input lag numbers across multiple PCs. We took the average of multiple readings in order to find a result that made some sense. Another feature that could be important for gamers is the variable refresh rate, which allows the TV’s flicker to match the refresh rate of the content.

We got our hands on a RTX 3080 and were able to get the TV to accept a 4k at 120Hz signal on ports 3 and 4. You have to make sure the TV is set to HDMI mode 2.1 for it to become an option. Through ports 1 and 2, you cannot get a 4k at 120Hz signal.

This TV supports HDMI VRR, on the Xbox One X and through Freesync on a supported Radeon graphics card. There are some issues though. We were not able to get it to work at 4k at 120hz properly, as it would constantly tear during our testing.

1440p at 120hz causes a different issue where the entire signal doesn’t send properly when VRR is enabled. The bottom of the screen is a bunch of random colors and the top of the screen seems to twitch.

1080p at 120hz and 4k at 60hz both work with Freesync enabled. That said, it did take some playing around with the TVs VRR setting, but once it started working there were no issues. Like the other Vizios of this year, the P Quantum X 2020 uses the SmartCast platform for its smart interface.

It’s a workable interface that’s easy to use, but unfortunately there are issues with it. It’s a little slow to navigate compared to the competition and we did experience a few crashes. It has some of the more popular apps built-in, but in order to get a full selection you’ll have to pair it with your phone, or other smart device, and cast the content to the TV.

The remote is the same as the other Vizios from this year and it works well enough, although you’ll need a smart device with a microphone in order to use the voice control features. Finally, we’ll take a look at the sound quality of the TV.

It’s got a decent pair of speakers with a reasonably balanced frequency response, so you shouldn’t need to play with the volume during a movie to hear dialogue or lower the sound of explosions. They get fairly loud, but there are better TV speakers out there.

If you’re interested in having a good quality sound setup, we also review soundbars that you can check out in the description down below. So overall, the P Series Quantum X 2020 is a great TV for viewing HDR content thanks to its wide color gamut and its high peak brightness.

It will also perform well for gamers thanks to the fast response time, VRR and good input lag values. It does have some pretty glaring issues, namely its strange red tint across every HDMI port. There’s also the issues with High Refresh Rate content and game low latency, which is disappointing, since it’s one of the newest and biggest features of TVs this year.

If you own last year’s model, it may be worth keeping it for another year, unless you absolutely need HDMI 2.1 and eARC for your setup.There’s also other options; like the Samsung Q90T which has excellent contrast ratio and similar peak brightness.

It supports VRR and has a better response time and input lag result. Or the Hisense H9G, which has comparable contrast ratio, slightly faster response times and is a cheaper alternative. That said, the P Series Quantum X has the best color gamut between them and the highest peak brightness.

So that’s it! What do you think of the Vizio P Series Quantum X 2020? Have you bought it? Let us know what you think below. You can check out all of the measurements on our website. If you like this video, subscribe to our channel, or become an insider on the website for access to our latest results first! Also, we are currently hiring in our offices in Montreal for various positions.

So, if you want to help people find the best product for their needs, have a look at the careers page on our website. Thank you for watching and see you next time.


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