TCL P755 vs Samsung QN80H

The TCL P755 delivers an average HDR experience, with a maximum brightness of just under 300 nits. This limitation affects the intensity of bright areas in HDR content, reducing the contrast impact, as bright elements may appear less pronounced. However, the TV compensates with an impressive 93% coverage of the DCI-P3 colour gamut, which brings vibrant, saturated colours that enhance the quality of HDR content. Despite the brightness cap, the extensive colour range enriches hues, providing a more lifelike and visually engaging viewing experience.

Samsung QN80H is without a doubt a bright TV. In synthetic tests it breaks the 1000-nit barrier, which on paper already promises a solid HDR effect. In practice the screen really shows its claws, though it can't fully spread its wings (or its backlight 🤔) in every situation. The best impression comes from bright, expansive shots. Sunlit exteriors or heavily lit scenes look really good on it. Brightness then stays around 700 nits, which gives a noticeable step up in quality over standard SDR. Problems start in dark scenes with small, pinpoint highlights. The QN80H tends to heavily dim them, doing everything it can to protect black levels. On one hand we gain better contrast, on the other... we lose some of the dynamics and the sparkle of fine HDR details. The TV therefore has considerable potential, but the dimming algorithm can be too restrictive.

Color gamut coverage

Colors are good too. The QN80H uses quantum dot technology, and in our measurements it covered 93% of the DCI-P3 space and about 70% of BT.2020. Today those results won't exactly blow anyone away, but in real-world use they're more than enough to deliver vivid, natural-looking images in most movies and TV series. Colors are properly saturated and, after proper tuning, don't look artificial or overly aggressive.

In Cinema mode, the colour reproduction on the TCL P755, while set to the best factory configuration, falls short of ideal accuracy. The primary issue is the white balance, where the red component is notably elevated and the green is reduced. This imbalance shifts colours towards red, making them appear unnatural, particularly in scenes featuring white or neutral tones. This issue is highlighted in the Colour Checker test, which shows a discernible red bias affecting the realism of the image and diminishing the perception of colour depth.

Examining contrast performance, the gamma graph analysis reveals notable inconsistencies, especially in darker areas, where values dip below the target level of 2.4. Consequently, shadows and darker sections are displayed brighter than intended, impacting overall contrast. Furthermore, the EOTF (Electro-Optical Transfer Function) curve, essential for accurate brightness representation, veers slightly above the reference curve. The data shows a boost in brightness up to around 50% before a gradual levelling off. This creates excessive mid-tone brightness, which can lead to loss of detail and some distortion in brighter scenes, ultimately affecting the clarity and immersion of the viewing experience.

The QN80H's factory settings were really good, especially compared with most TVs that come into our tests. Of course, we performed measurements in Filmmaker Mode, and that's the mode we recommend turning on right after the initial setup. In SDR material our unit was set up surprisingly well. The white balance was very even, colors looked natural, and the errors were so small they were hard to spot without measurement equipment. The only weak point was the gamma. In brighter parts of the image the TV brightened them a bit too much, so the picture sometimes lost a little depth. Even so, we'd like most TVs to look this good straight out of the box.

It was a bit worse in HDR. The white balance itself was still set correctly, so the problem wasn't with the colors but with how the QN80H managed image brightness. You could see that immediately on the EOTF chart. The TV brightened large parts of scenes too much, causing the brightest elements to blow out. Interestingly, at the same time very small points were often dimmed too much. As a result some fine detail simply disappeared. So the factory Filmmaker Mode in HDR isn't bad, but it's definitely not as well calibrated as in SDR.

Post-calibration, the TCL P755 delivers a markedly improved colour performance for SDR content. The colour curves now align closely with ideal values, with a more consistent gamma stability across the range. While a slight drop at the beginning of the gamma curve persists, the accuracy in colour reproduction is significantly enhanced. The Colour Checker test reveals most colour samples are now under an error threshold of 2, showcasing much-improved colour fidelity with only minimal deviations, resulting in colours that feel notably more authentic to life.

HDR content benefits from these calibration adjustments as well. White balance corrections lend a more natural tone, with colours appearing more balanced overall. The EOTF curve, while nearer to the ideal reference line, still features a mild brightness elevation at the start, which can cause minor distortions in exceptionally bright scenes. However, overall tonal quality and detail resolution have both improved. Tone mapping also performs more effectively, enhancing detail in bright regions while maintaining better image accuracy.

In summary, while calibration does not bring flawless performance, it makes a substantial difference in the P755’s visual quality. Following these adjustments, the television provides a more accurate, realistic viewing experience in both SDR and HDR content, smoothing out many of the previous colour inconsistencies for a more visually engaging result.

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 managed to tame the way the QN80H handled brightness, as it had been over-brightening most scenes. After calibration the picture is calmer, more natural, and much closer to how a faithful picture should look.

The "Gradual Smoothing" function on the TCL P755 performs effectively, reducing visible boundaries between shades of the same colour and creating smoother tonal transitions. Unfortunately, this feature is unavailable in HDR mode, which can impact the quality of tonal gradations in high dynamic range content.

In terms of image scaling, the television shows some limitations. There are visible edge cut-offs, especially noticeable around figures and tree branches, which result in some detail blurring and a reduction in overall image sharpness. This is particularly noticeable when viewing lower-resolution content. Additionally, SD-quality images display a slight crop at the top and bottom, which may further impact viewing for standard-definition content.

Digital image processing in the Samsung QN80H is handled by the second-generation NQ4 AI processor. It's a chip we already know from earlier models and it still performs very well, especially with lower-resolution material. The image is effectively upscaled to 4K, but without excessive sharpening and without the feeling that the TV is forcing improvements on the source material.

The "Noise Reduction" feature also proves useful. It can noticeably reduce posterization and visible banding in poorer-quality material, particularly in low-bitrate streaming. However, it's important to remember that it doesn't work without side effects. It can remove some film grain and slightly smooth the image. So with a good-quality source we'd leave this feature off. If, however, banding and uneven tonal transitions bother you more than losing some grain, "Noise Reduction" can be a really useful addition.

The TCL P755 delivers satisfactory, though not flawless, motion smoothness. It includes a "Flicker Reduction" feature for films, allowing users to fine-tune motion smoothness on a scale from 1 to 10. This setting offers flexibility in tailoring the image to cinematic or more theatrical preferences, adjusting for a slower or faster appearance according to personal viewing taste.

Motion blur and motion handling on the QN80H are really good, mainly thanks to the fast panel. In 4K the screen refreshes at up to 144 Hz, and when switched to Full HD and connected to a PC it can reach as high as 240 Hz. That's new for Samsung TVs and a nice bonus for people who want to use the TV for PC gaming as well. We were more interested, however, in how the QN80H performs at 120 Hz, since consoles use that refresh rate. Here it's really good. The panel doesn't have a big problem with the smearing typical of VA panels, and slight trails behind moving objects are mostly visible on dark backgrounds. This is nothing that would interfere with normal sports viewing or gaming. The TV also includes a motion smoothing system that Samsung calls "Image Clarity." You can adjust judder reduction and blur reduction separately, so it's easy to tailor its operation to movies, sports, or your own preferences.

The TCL P755 comes equipped with gamer-oriented features like ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), Dolby Vision for gaming, and a Game Bar. ALLM automatically activates low latency mode to enhance response times and reduce input lag, while VRR syncs the screen refresh rate with the console's frame output, minimising screen tearing for a smoother gaming experience. Dolby Vision for gamers brings improved colour and contrast for compatible games, and the Game Bar allows easy access to essential settings like response time.

However, the 60 Hz panel limits the display to this refresh rate across resolutions, which may impact the fluidity in high-motion games. The absence of G-Sync also affects PC gamers, as gameplay on computers lacks this technology's extra smoothing. Notably, HGiG mode, meant to optimise HDR game visuals, is not fully functional on this model, which slightly detracts from the HDR gaming experience.

Samsung QN80H is a TV that scores very well on gamer-oriented features. The biggest new addition for 2026 is DLG mode, which allows refresh rates up to 240 Hz when the image is switched to Full HD resolution. This option is aimed mainly at PC users, but it also shows that Samsung is still heavily developing the gaming side of its TVs. That’s not the end of the list of advantages. The QN80H has four full-featured HDMI 2.1 ports, which in this price range still isn’t standard. You can therefore connect multiple consoles, a PC, or a soundbar at the same time without worrying which input supports the full picture capabilities. The TV also supports VRR, ALLM, and HGiG, so it’s hard to fault its basic feature set. One downside remains the lack of Dolby Vision, which may matter especially to Xbox Series X owners. That said, it’s not a flaw that rules out the QN80H as a gaming TV. Samsung includes a feature still missing from most manufacturers: its proprietary motion interpolator, Game Motion Plus. It’s a motion interpolator that also works in game mode, allowing you to improve 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 processing, especially in more demanding games that don’t offer a 60 FPS mode. The image becomes noticeably smoother while controls remain responsive enough. So despite the lack of Dolby Vision, the QN80H is still one of the best-equipped TVs for gamers in its class.