SAMSUNG QN80F vs TCL C7K / QM7K 50"

QN80F is quite a bright screen – in synthetic tests, it achieved nearly 1000 nits, which allows for reasonable expectations with HDR content. And indeed, in many scenes, the television truly shines. Sequences with a lot of light – such as shots from the movie Life of Pi or wide, bright surfaces in The Meg – look spectacular. Brightness maintains around 700 nits, which provides a solid effect, sufficient to feel the true "HDR magic." Unfortunately, not every scene looks that good. In materials with small, bright details on a dark background, like in Sicario 2, the television has problems – it can dim certain elements significantly, sometimes to the point where they disappear from the image. This is the result of a limited number of dimming zones, which forces the device to make compromises: either stick to inky blacks or sacrifice some details. QN80F usually chooses the former. As a consolation, it has quite decent coverage of a wide color gamut – DCI-P3 at 93%. This is not the highest score on the market, but it is more than enough for most content on streaming platforms.

TCL C7K is one of the brightest MiniLED televisions in its price range. Under the best test conditions, the screen was able to achieve over 1200 nits, resulting in impressive, and at times blindingly bright scenes. And most importantly – this is not just a theoretical measurement. In practice, the brightest parts of movies can shine with true cinematic grandeur. Home HDR cinema fans should be truly pleased.

The impression is especially great in scenes with large areas of brightness – white skies, explosions, sun reflections, or magical sunsets can surprise with the intensity of light that rarely appears in this price range.

However, things get a bit worse when more challenging scenarios appear on the screen, which have been described in terms of contrast – meaning images full of details, with small bright elements against a dark background. In such cases, the C7K often chooses to retain black at the expense of brightness. An example? Scenes from the movies Sicario 2 or Life of Pi, where small light sources (like a distant lantern) can be less visible, and details in the lights are simply dimmed or blend into the background.

For many viewers, this may be an acceptable compromise – as we achieve deep blacks and pleasant image texture. Nevertheless, it is worth being aware that the visibility of small details in bright areas is not the strongest suit of this model. It is simply a technological limitation that still exists – even with over 300 zones.

We always test televisions in the best available factory mode – for the Samsung QN80F, this is the Filmmaker mode, and indeed, it offers the settings closest to the creators' intentions. However, this doesn't mean that everything looks perfect. In SDR content, the biggest issue turned out to be an unbalanced white balance – slight deficiencies in green and a noticeable excess of red led to noticeable color errors, and one could almost say there was a pinkish tint to the screen. This was clearly visible in the color checker test, where colors would "escape" their target fields – to the extent that a sensitive viewer's eye could catch it even without the help of a meter.

In HDR content, the white balance was much better, but another problem emerged – brightness management. The EOTF curve caused an overly bright image most of the time, which could affect the perception of contrast and made the screen slightly "flicker" during dynamic light changes. We have already discussed this in the paragraphs about black and HDR. Fortunately, Samsung leaves the user with plenty of options. The QN80F offers a rich set of calibration options, including a 20-point white balance – that's why we decided to check what this television is really capable of after proper calibration.

A new feature in TCL televisions for 2025 is the long-awaited Filmmaker mode, which until now could be found in most competitive brands. This is great news because this mode is considered the truest to the original vision of the creators and is often recommended by enthusiasts of good image quality. Unfortunately – as is often the case – the mere presence of this feature does not guarantee perfection. The Filmmaker mode in the TCL C7K is not free of flaws. One could point out the incorrect white balance, particularly the slight dominance of blue, which caused cool, somewhat grayish skin tones. But that was not the biggest problem. The main complaint was excessive brightness exposure, which is clearly visible on the gamma and EOTF graphs. The image was simply too bright, at times even blown out, which affected not only the plasticity of the scenes but also the overall viewing experience. Some details simply got lost, and the whole image looked as if someone had overdone it with the brightness slider. As always – we decided to see what could be squeezed out of it after calibration. And this is where things got really interesting...

After conducting a thorough calibration, it was possible to bring most image parameters to a really good level. The white balance in both SDR and HDR appears nearly perfect – the image is natural, neutral, and free of the previously noticeable reddening. The colors have gained depth, and the overall visual reception has become more pleasant and cohesive. It was also possible to partially master brightness management, which in the factory version could be problematic. The EOTF chart shows that the television performs significantly better with brightness after calibration – there's no longer excessive dimming of certain elements. In films, it can still be observed that the QN80F has a tendency to slightly brighten the smallest, bright details – this is already a result of the device's construction and the limited number of dimming zones. In short: not everything can be overcome, but what could be improved has been addressed. After calibration, the QN80F makes a really good impression; it simply looks more mature and professional.

After calibration, the TCL C7K showed itself in a really good light, especially when it comes to SDR content. We managed to fine-tune the white balance, color gamut, and brightness characteristics so precisely that color errors on the ColorChecker palette dropped below a value of 2. For the uninitiated – this is an almost perfect result, meaning that the image is very close to what the creators intended. Unfortunately, it was less impressive with 4K HDR content. Although we managed to slightly calm the white balance and correct its earlier errors, it is still evident that the TV has certain "MiniLED traits," especially in managing brightness. When we checked how the C7K performed with the EOTF curve on real movie scenes rather than just synthetic test patterns, it turned out that the screen still has a tendency to slightly brighten the entire image. This affects the overall experience – the black loses some depth, and the image becomes less contrasty than it should be. Despite these minor shortcomings in HDR content, the overall reception of materials – especially in SDR – is really very good. After calibration, the C7K can display an image that can successfully compete with much more expensive models. Good color tuning, natural skin tones, and pleasant brightness make movie sessions and everyday content viewing more than satisfactory.

If, while watching lower-quality materials – for example from YouTube – we notice strange color transitions or unwanted artifacts, it’s worth checking the settings and enabling the noise reduction function. In our opinion, the best setting is at the "medium" level – it effectively smooths out problematic color transitions while not excessively blurring the entire image. However, one must know this: this option tends to remove film grain. If someone cares about preserving this effect (e.g., in older films), it’s better to just turn it off – regardless of the level, the grain always disappears.

When it comes to scaling resolution (i.e., the so-called upscaling), Samsung – as always – performs very well in this area. The QN80F may not compare to the top models worth several thousand, but for its price class, it really performs impressively. Very low-quality materials (e.g., from SD television or older video files) are noticeably improved and look surprisingly decent. The only noticeable drawback is the typical Samsung issue with overscan – that is, slightly cropping the edges of the image at very low resolutions, e.g., 576p.

The TCL C7K features a function that, according to the manufacturer, is supposed to smooth out unwanted color transitions – something like a rescue for less successful tonal shifts. It's called "Gradual Smoothing" and... well, it sounds ambitious, but in practice, it works very poorly. Regardless of whether we set it to low or high, the difference is minimal. What's worse – the function can remove elements from the image that should remain. Fortunately, film grain remains untouched, so at least it doesn't smooth everything indiscriminately, but still – it's better to just turn this option off.

As for scaling lower-resolution content, it's already better. SD and HD materials look quite decent, though sometimes we had the impression that the image loses sharpness and becomes too soft – as if something took away its clarity. Fortunately, at very low sources (e.g., 576p), there was no overscan effect, meaning the image was not artificially cropped – everything fit on the screen as it should.

QN80F is truly a "fast" television. The applied panel offers a refresh rate of up to 144 Hz, which in practice means that the screen keeps up with the action – whether we're watching a movie, playing games, or browsing dynamic content on the internet. The image doesn't tear, it doesn't excessively blur, and everything simply looks smooth and pleasant to the eye. Of course, the manufacturer hasn't forgotten about movie fans – in the settings, we find an option for motion smoothness adjustment, allowing us to tailor the effect to our personal preferences. You can leave a more "cinematic" look (for those who enjoy a classic film vibe) or crank up the smoothness to a higher level for a theatrical smoothing effect. Importantly, the choice is ours. Watching movies and playing on the QN80F is simply a joy.

TCL C7K handles motion smoothness really very well. The matrix used in it offers a refresh rate of 144 Hz, which already suggests that this TV is something more than just an ordinary "60 Hz" panel. Moreover – if we connect the C7K to a computer and set the resolution to Full HD. But we will write more about this in the paragraph about gamers and PC cooperation. Returning to everyday use – both sports and movies look very good here. Thanks to the fast panel and well-functioning motion smoother, the C7K is perfect for watching matches, but also for movie screenings. In the menu, we will find two sliders – blur reduction and flicker reduction – which allow us to adjust the motion smoothness effect to our own preferences. At lower settings, we get a more cinematic effect, with slight frame motion. At higher settings – the image becomes more theatrical, smooth to the point of exaggeration. Everyone can set it to their liking.

The Samsung QN80F is a television that delivers on almost every front when it comes to gaming. It features a 144 Hz panel, four full-fledged HDMI 2.1 ports, support for gamers in the form of variable refresh rate (VRR), automatic low latency mode (ALLM), and even one of the best-designed game bars on the market. The cherry on top is the motion smoother, which – uniquely in the world – works in games without significantly increasing input lag. Sounds like an almost perfect TV for gamers? And indeed, it is almost that way.

[UPDATE] We have updated our reviews of Samsung TVs from 2025 due to the release of software version 1131, which restored the crucial gaming feature HGiG.

As usual, Samsung does not support Dolby Vision in games, but that no longer surprises anyone. However, what is much more surprising is that... the HGIG feature has disappeared – that is, the system that allows a console (e.g., PlayStation 5 or Xbox Series X) to precisely match HDR tone mapping to the capabilities of the TV. In the latest firmware update for the 2025 models, this option simply vanished. It seems more like a bug than a deliberate move, but it must be honestly noted that as of the day of writing the review, the HGIG feature is simply not present.

And it is precisely because of this one absence that the QN80F turns from an almost perfect gaming TV into a "nearly" perfect device. It's a shame – because everything else indicated that Samsung could set the bar very high again in this generation.

TCL C7K is a TV that looks like the dream equipment for gamers on paper – and most importantly, it also performs well in practice. First, the good news: we have two HDMI 2.1 ports with full bandwidth, so we can easily connect both a console and a computer, taking full advantage of their capabilities. The panel itself supports 144 Hz refresh rate, which provides a significant advantage in dynamic games. Additionally, it comes with a full package of gaming features: VRR (Variable Refresh Rate), ALLM (Auto Low Latency Mode), and Dolby Vision support in games. There is also an HGiG mode, which allows for HDR effects that align with the creators' intentions. GameBar, which is an information bar for gamers. It operates quickly, looks clear (like a Nintendo console👌), and shows what’s most important: the current frame count, VRR status, and even HDR parameters.