TCL P755 vs Samsung QN80H

TCL P755 provides average HDR effect quality. The maximum brightness of the TV is slightly below 300 nits. Such brightness limits the intensity of bright areas in HDR content. In practice, this means that bright elements may not be sufficiently pronounced, affecting the overall impression of contrast. However, the TV offers wide coverage of the DCI P3 colour gamut, reaching about 93%. As a result, colours are vibrant and saturated, significantly improving colour reproduction quality in HDR content. Despite the limited brightness, the wide colour range allows for richer and more realistic shades.

The Samsung QN80H is undoubtedly a bright TV. In synthetic tests it exceeds the 1000‑nit mark, which on paper already promises a solid HDR effect. In practice the screen really shows its stuff, although it can't always fully spread its wings (or its backlight 🤔). The best impression comes from bright, wide shots. Sunlit landscapes or heavily lit scenes look really good on it. Brightness then sits around 700 nits, which delivers a noticeable step up compared with standard SDR. Problems start in dark scenes with small, pinpoint highlights. The QN80H tends to dim those aggressively to protect black depth at all costs. On one hand you get better contrast, on the other... you lose dynamics and the sparkle of fine HDR detail. The TV therefore has plenty of potential, but the local‑dimming algorithm can be too restrictive.

Colour‑gamut coverage

Colour-wise it’s also good. The QN80H uses quantum‑dot technology, and in our measurements it covered 93% of the DCI‑P3 colour space and about 70% of BT.2020. Those results won't drop anyone's jaw today, but in real‑world use they’re more than enough to deliver a vivid and natural picture for most films and series. Colours are suitably saturated and, after proper tuning, they don't look artificial or overly aggressive.

The colour reproduction in the P755 in "Cinema" mode, although it is the best factory setting, leaves much to be desired. The biggest issue is the white balance, where the chart clearly shows a spike in the red colour and a drop in the green colour. This leads to a shift in colours towards red, causing the colours on the screen to appear less natural and may look incorrect, especially in scenes with a white or neutral background. This is confirmed by the "Colour Checker" test, which reveals that the colours are indeed shifted towards red, affecting the realism of the image and reducing the perception of colour depth. In terms of contrast, the gamma chart analysis shows significant fluctuations, particularly in the dark areas of the image, where values drop below the optimal level of 2.4. As a result, darker areas may be displayed brighter than they should be. Additionally, the EOTF curve, responsible for brightness reproduction, sits slightly above the reference curve. The graph shows a slight increase in brightness to about 50%, after which there is only a minor drop. This leads to excessive brightness enhancement in the mid-range of the image and may result in loss of detail and distortion in brighter scenes.

The QN80H’s factory settings performed really well, especially compared with most TVs that come through our tests. Of course we took measurements in Filmmaker Mode, and that’s the mode we recommend switching on right after the initial setup. For SDR content our sample was set up surprisingly well. The white balance was very even, colours looked natural, and errors were so small they were hard to spot without test equipment. The only weaker point was the gamma. In brighter parts of the picture the TV brightened them a little too much, so the image sometimes lost some depth. Even so, we wish most TVs looked this good straight out of the box.

It was a bit worse in HDR. The white balance was still set correctly, so the issue wasn’t colour but the way the QN80H managed image brightness. You could see that straight away on the EOTF chart. The TV brightened large parts of scenes too much, causing the brightest elements to blow out. Interestingly, very small highlights were often dimmed too much at the same time. As a result some fine details simply disappeared. The factory Filmmaker mode in HDR isn’t bad, but it’s definitely not as well tuned as it is in SDR.

After calibration, the colour reproduction on the television significantly improves when it comes to SDR content. The colour curves are now close to the ideal value, and the gamma is more stable. Although the dip at the beginning of the graph to the values is still present, the overall accuracy of colour reproduction is much better. The “Colour Checker” test shows that most colour samples have errors below level 2, indicating improved colour fidelity. A few deviations are present, but generally, the colours are now more realistic and consistent with reality.

Calibration also brings improvements in HDR content. The white balance has been corrected, translating to more natural colour reproduction. The EOTF curve, although now closer to the reference curve, still shows a slight boost in brightness at the beginning of the graph. This leads to minor distortions in very bright scenes, but the overall tonality and detail have been enhanced. Dynamic tone mapping works more effectively, improving image quality in bright areas and preserving more details.

Although the image from the device does not achieve full perfection, calibration brings significant improvement. After adjusting the settings, the television performs much better, offering more realistic and accurate colour reproduction in SDR and HDR content. While some shortcomings can still be noticed, calibration effectively eliminates many previous issues, ensuring better image quality and more natural colours.

The biggest difference after calibration was in HDR Filmmaker mode. SDR was already very good out of the box, so we didn't have much work to do there. In HDR, however, we were able to rein in how the QN80H handled brightness; it had been making most scenes too bright. After calibration the picture is calmer, more natural and much closer to a faithful reproduction.

The “Gradual Smoothing” function works quite well, effectively eliminating visible boundaries between different shades of the same colour. Thanks to it, tonal transitions are smoother. Unfortunately, this function is not available in HDR mode, which can affect the quality of tonal gradation in higher dynamic range materials.

In the case of image scaling, the television does not perform its best. There are noticeable edge cut-offs, particularly evident on the model's figure and the branches of trees. The blurring of details in these areas affects the overall sharpness of the image. This may be noticeable when watching content in a lower resolution. Additionally, SD quality image is displayed with slight cropping at the top as well as the bottom.

The digital image processing in the Samsung QN80H is handled by the second-generation NQ4 AI processor. It's a chip we've already seen in previous Samsung models and it still performs very well, especially with lower-resolution content. The image is effectively upscaled to 4K, but without excessive sharpening and without making it feel like the TV is trying to forcibly enhance the source material.

The "Noise Reduction" feature also proves useful. It can noticeably reduce posterisation and visible banding in lower-quality material, especially in low-bitrate streaming. However, you should remember it doesn't work without side effects. It can remove some film grain and slightly smooth the picture. So with a good-quality source we'd leave this feature turned off. If, however, banding and uneven tonal transitions bother you more than the loss of some grain, "Noise Reduction" can be a really useful addition.

The television offers decent, though not perfect, results in terms of motion smoothness. In the case of movies, the television has a "Flicker Reduction" feature that allows for adjustment of motion smoothness on a scale from 1 to 10. With this option, we can tailor the image appearance to cinema or more theatrical preferences (with lower or higher speed).

Motion blur and motion handling on the QN80H are really good, mainly thanks to the fast panel. In 4K the screen refreshes the image at up to 144 Hz, and when switched to Full HD and connected to a PC it can reach up to 240 Hz. That's new for Samsung TVs and a handy extra for people who want to use the TV for PC gaming. We were more interested, though, in how the QN80H performs at 120 Hz, because consoles use that refresh rate. It does very well. The panel doesn't suffer much from the smearing typical of VA panels; faint trails behind moving objects are mostly visible on dark backgrounds. That's not something that would interfere with normal sports watching or gaming. The TV also has a motion smoothing system that Samsung calls "Picture Clarity". You can set judder reduction and blur reduction separately, so it's easy to tune it for films, sport or your own preferences.

The device offers a range of features useful for gamers, such as ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), Dolby Vision for gamers, and Game Bar. ALLM automatically switches the TV to low latency mode, significantly improving responsiveness to commands from the controller and minimising input lag. VRR synchronises the screen refresh rate with the number of frames generated by the console, eliminating the tearing effect and providing smoother gameplay. Dolby Vision for gamers enhances picture quality by offering better colour and contrast reproduction in games that support this format. The Game Bar feature allows quick access to game settings and monitoring of key parameters such as response time.

However, the TV has some limitations. The 60 Hz panel prevents the display of signals with higher refresh rates at different resolutions, which may affect the fluidity of the image in dynamic games. Additionally, the lack of support for G-Sync technology for PC may impact the quality of gameplay on a computer. It is also worth noting that the HGiG mode, which aims to improve image quality in HDR games, does not work correctly on this model, negatively affecting the visual experience in HDR-supported games.

The Samsung QN80H is a TV that performs very strongly when it comes to gamer-focused features. The biggest new feature for 2026 is DLG mode, which allows refresh rates up to 240 Hz when the image is switched to Full HD. It's an option aimed mainly at PC users, but it also shows that Samsung is still investing heavily in the gaming side of its TVs. The list of advantages doesn't end there. The QN80H has four full HDMI 2.1 ports, which at this price point still isn't standard. So you can connect multiple consoles, a PC or a soundbar at once and not worry about which port supports the full video capabilities. The TV also supports VRR, ALLM and HGiG, so it's hard to fault its basic feature set.

A downside is the lack of Dolby Vision, which could matter especially for Xbox Series X owners. However, this isn't a flaw that rules the QN80H out as a gaming TV. Samsung does have a feature that most manufacturers still lack, namely its proprietary motion smoothing, Game Motion Plus. This motion smoother also works in game mode, improving the smoothness of titles running at 30 or 60 frames per second without a drastic increase in input lag. In practice, Game Motion Plus can make a much bigger difference than Dolby's codec, especially in more demanding games that don't offer a 60 fps mode. The image becomes noticeably smoother, while controls remain sufficiently responsive. So despite the lack of Dolby Vision, the QN80H is still one of the best-equipped gaming TVs in its class.