TCL C655 / C69B (43" - 50") vs Samsung U8000F (VA)

The quality of the HDR effect in the TCL C69B / C655 television is quite average. With a brightness level of 350 nits, although not the worst, it still doesn't allow for a full enjoyment of HDR effects, which require higher luminance to showcase their power. Additionally, despite the application of a quantum dot coating (QLED), the television offers an average coverage of the wide DCI-P3 colour gamut at 91%, which may limit its richness of colours in HDR content.

While the U8000F with a VA panel can still be praised for decent blacks, there is no longer any reason to be enthusiastic about brightness – especially in HDR scenes. The television achieves a maximum of just under 250 nits, which is simply too low to speak of any impressive light effects. Bright elements appear pale, and scenes that should sparkle look rather flat. We observed an interesting situation during the test of a scene from the film Sicario 2 – the screen became noticeably darker, as if the television was trying to hide its limitations in displaying blacks. One might get the impression that the device artificially darkens the image to enhance contrast, but in practice, the effect makes very little difference, other than the fact that we see less on the screen. Furthermore, there is the issue of colours – the U8000F does not support a wide colour gamut, so one cannot count on the vibrant, saturated hues known from better models. The HDR image here resembles slightly brightened SDR and... perhaps that is even a good thing. With this model, it is not worth expecting a cinematic experience – it is better to treat HDR as a modest addition.

The television TCL C69B / C655, tested in movie mode, unfortunately does not meet expectations in terms of colour accuracy. Although movie mode suggests better representation, it has almost nothing in common with film. There are many errors evident, particularly in white balance – for both HD and 4K HDR content – where the dominance of the blue colour is very noticeable. For the viewer, this means that the image becomes unnaturally cool, affecting the overall perception of colours and the visual impression. The colour checker confirms these errors, showing that colours shift towards cooler shades.

As for brightness characteristics and the related contrast, gamma is very unstable for the material, which can make the image slightly darker. The EOTF curve for the 4K material shows some errors, with significant deviations towards the end of the graph, which negatively impacts the reception of darker parts of the image.

The Samsung U8000F has been tested by us in the best picture mode it offers out of the box – the Filmmaker Mode. This profile is theoretically meant to provide a neutral, cinematic image devoid of unnecessary enhancements and artificial beautifications. In the case of SDR content – primarily in HD or SD resolution – the television performed surprisingly decently right out of the box. The only noticeable flaw was brightness management. The gamma chart showed some deviations – slight brightening or dimming of certain tones – but in practice, this did not significantly affect the viewing experience. Considering the television's segment, it performs quite well.

However, the situation is much weaker in HDR mode. While the white balance was still acceptable, the colour inaccuracies were very apparent. In the Color Checker test, almost every sample was outside the target point, and the image itself appeared unnatural – the colours were shifted, sometimes too cool, other times simply dull and lifeless. The main problem lies in the hardware limitations – the U8000F does not support the wide colour gamut of DCI-P3, so it is physically incapable of reproducing the colours that the HDR standard anticipates. Unfortunately, this is evident in almost every more demanding scene.

After calibration, the movie mode on the TCL C69B / C655 television improves in quality. The greatest improvement can be seen in tonal quality, and the white balance presents itself much better – with no major errors. We will no longer see an excessive dominance of cool tones. Gamma has also been improved, leading to a more stable representation of brightness and contrast. However, due to limitations in the form of the television's average colour palette, Colour Checker tests for 4K materials did not achieve remarkable results. Despite these technological limitations, the image has become more authentic, positively affecting the reception of film content.

Right out of the box, the U8000F offered quite a decent image in SDR for its price class. However, we managed to enhance it slightly – we reduced a subtle purple tint and improved the gamma characteristics, giving it a more natural curve. Despite these adjustments, the television still tends to overly brighten the brightest details – the gamma chart shows a clear inflection that cannot be completely corrected.

In HDR mode, however, it is noticeably weaker. It is hard to speak of any significant improvement here – despite attempts to adjust the settings, the image still presents considerable colour inaccuracies. A Delta E exceeding 7 signifies noticeable deviations that could not be effectively reduced. Unfortunately, this is a limitation of the construction itself – the U8000F simply was not designed for serious HDR. In everyday viewing in SDR, it performs quite well, but when it comes to HDR content... it's best not to have overly high expectations.

The "Gradual Smoothing" function works very well on the TCL C69B television and, surprisingly, does not remove desirable effects such as film grain – unlike some solutions from other manufacturers. When it comes to image scaling, unfortunately, it looks poor. The television artificially sharpens the image, causing the edges of objects to be quite jagged. This state of affairs may appeal to some users who prefer a more "hard" look to the image, but it is not an ideal solution for those who value naturalness and fluidity of details.

When it comes to how the Samsung U8000F handles lower quality materials, we must admit that Samsung has made progress compared to its predecessor from last year – the DU7192 model, which theoretically occupies the same position in the lineup. This year's model has been equipped with a feature to improve the fluidity of tone transitions, which has been implemented much better than last year. Indeed, the television still utilizes quite strong algorithms that can distort details or remove film grain, but nonetheless – it can confidently be said that it works effectively. However, not everything has gone perfectly. The U8000F has noticeable issues with slightly cutting the image when watching very old content in very low resolution. If someone plans to play their old VHS tape, they must reckon with the fact that the image may appear slightly "cut off".

The TCL C69B / C655 television in its smallest variants offers decent, though not perfect, results in terms of motion smoothness. For films, the television features a "Flicker Reduction" function that allows adjustment of motion smoothness on a scale from 1 to 10. With this option, we can tailor the appearance of the image to our cinematic or more theatrical preferences (with either lower or higher speed).

The Samsung U8000F is equipped with a 60 Hz panel, so it's clear right from the start that one shouldn't expect miracles. This is simply the standard in this class – adequate for everyday viewing, but without any fireworks. The television offers a single motion smoothing slider – a feature called "Motion Blur Reduction," which allows us to adjust the smoothness of the image in films. Higher settings produce a more "theatrical" and smoothed effect, while lower settings help retain the film's original character with a slight 24p effect. An interesting feature is "Clear Motion LED," which is the BFI mode – inserting black frames between image frames to improve motion clarity. In practice, however, the screen flickers heavily when this feature is activated and should rather be considered an experiment than something that genuinely enhances gaming comfort.

The TCL C69B / C655 television in its smallest variants offers a range of features dedicated to gamers, such as ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), Dolby Vision for gamers, and Game Bar. ALLM automatically switches the television to low latency mode, improving responsiveness and minimising delays in control. VRR allows the screen refresh rate to synchronise with the number of frames generated by the console, eliminating screen tearing and providing smoother gameplay. Dolby Vision for gamers ensures better colour and contrast reproduction in games that support this format, resulting in enhanced picture quality. Meanwhile, Game Bar provides quick access to game settings and monitors key parameters such as input lag.

However, the television has certain limitations that may affect gaming comfort. The 60 Hz panel does not allow for displaying signals with higher refresh rates, which may impact the smoothness of the image in fast-paced games. The lack of support for G-Sync technology for PCs may also be noticeable when gaming on a computer, especially in demanding, fast-paced titles.

[UPDATE] We have updated our 2025 Samsung TV reviews following the release of firmware version 1131, which officially restores the essential HGiG (HDR Gaming Interest Group) support.

Samsung U8000F offers a basic set of features for gamers, which may still be sufficient for less demanding users. It includes an automatic game mode – when a game is launched on the console, the television automatically switches to low latency mode, significantly improving response times. There is also a VRR feature, or variable refresh rate, which operates in the range of 48 to 60 Hz. This means that both Xbox and PS5 will not produce the "tearing" effect – as long as we stay within this range.

Unfortunately, that’s about it for the advantages. Additions like Game Bar or higher refresh rates are reserved for higher-end Samsung models from the 2025 line. In theory, the television also supports the HGiG feature, which should adjust HDR imagery to the creators' intentions. Unfortunately – despite the fact that this feature appears in brochures and promotional materials – its configuration on the Xbox console turned out to be... impossible in practice.