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

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

While the U8000F with its VA panel can still be praised for decent blacks, there are no such accolades when it comes to brightness—particularly in HDR scenes. The television only achieves a maximum of just under 250 nits, which is simply too low to talk about any impressive light effects. Bright elements appear washed out, and scenes that should shine look rather flat. An interesting situation occurred during our testing of a scene from the movie Sicario 2— the screen noticeably darkened, 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 improve contrast, but in practice, the effect doesn't make much difference, apart from the fact that we see less on the screen. Additionally, there’s the issue of colours—the U8000F doesn’t support a wide colour gamut, so one shouldn’t expect vibrant, saturated hues known from better models. The HDR image here resembles a slightly brightened SDR and... maybe that’s not such a bad thing. For this model, it’s not worth expecting a cinematic experience—better to treat HDR as a modest addition.

Tested in film mode, the television TCL C69B / C655 unfortunately does not meet expectations regarding colour accuracy. Although the film mode suggests better representation, it has as much in common with film as nothing at all. There are numerous errors, particularly in the white balance – for both HD and 4K HDR content – where the dominance of blue is very apparent. 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.

When it comes to brightness characteristics and related contrast, gamma is very unstable for the material, making the image potentially slightly darker. The EOTF curve for the 4K material shows some errors, with significant deviations towards the end of the graph, which negatively affects the perception of darker parts of the image.

Samsung U8000F has been tested by us in the best picture mode it offers out of the box – that is, Filmmaker Mode. This profile is supposed to theoretically provide a neutral, cinematic image, free of unnecessary enhancements and artificial beautifications. In the case of SDR content – mainly in HD or SD resolution – the television already presented itself surprisingly reasonably right out of the box. The only noticeable imperfection 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. For a television in this segment, it performs quite well.

However, the situation in HDR mode looks significantly weaker. Although white balance was still acceptable, colour errors were very evident. In the Color Checker test, almost every sample was outside the target point, and the image itself appeared unnatural – colours were skewed, sometimes too cool, and at other times simply dull and lifeless. The main issue lies in hardware limitations – the U8000F does not support the wide colour gamut of DCI-P3, so it is physically unable to reproduce the colours that the HDR standard intends. 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 most significant enhancement can be seen in tonal reproduction, and the white balance presents itself much better – without major errors. We will no longer see the excessive dominance of cool shades. The gamma has also been improved, resulting in a more stable representation of brightness and contrast. However, due to limitations in the average colour palette of the television, Colour Checker tests for 4K materials did not achieve outstanding results. Despite these technological limitations, the image became more authentic, positively impacting the reception of film content.

Right out of the box, the U8000F offered a pretty decent picture in SDR for its price range. We managed to tweak it a bit further – we reduced a slight purple tint and improved the gamma characteristics, giving it a more natural curve. Despite these adjustments, the TV still has a tendency to overly brighten the brightest details – the gamma chart shows a clear break that cannot be fully corrected.

On the other hand, in HDR mode, it’s noticeably weaker. It's hard to talk about any significant improvement – despite attempts to fine-tune the settings, the picture still presents considerable colour errors. A Delta E exceeding 7 indicates noticeable deviations that we couldn’t effectively reduce. Unfortunately, this is a limitation of the construction itself – the U8000F simply wasn't designed for serious HDR. In daily SDR viewing, it performs quite well, but for HDR content... it’s best not to have overly high expectations.

The "Gradual Smoothing" feature works very well on the TCL C69B TV and, surprisingly, does not remove desirable effects like film grain – unlike some solutions from other manufacturers. Unfortunately, when it comes to image scaling, it looks poor. The TV artificially sharpens the image, causing the edges of objects to appear quite jagged. This situation 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 have to admit that Samsung has made progress compared to its predecessor from last year – the DU7192 model, which theoretically occupies the same place in the lineup. This year’s model is equipped with a feature that improves the smoothness of tonal transitions, which has been implemented much better than last year. Yes, the television still uses quite strong algorithms that can distort details or remove film grain, but still – it can be confidently said that it works effectively. However, not everything has gone perfectly. The U8000F has noticeable issues with slight image stuttering when watching very old content in very low resolution. If someone plans to play their old VHS tape, they must be prepared for the image to look slightly “choppy”.

Television TCL C69B / C655 in its smallest variants offers decent, though not perfect, results in terms of motion smoothness. For movies, the television features a "Flicker Reduction" function, which allows for adjustment of motion smoothness on a scale from 1 to 10. Thanks to this option, we can tailor the image appearance to either a cinematic or more theatrical preference (with less or greater speed).

The Samsung U8000F comes with a 60 Hz panel, so right from the start, it's clear that you can't expect miracles. It's simply the standard in this class – sufficient for everyday viewing, but without any fireworks. The TV offers one motion smoothing slider – a function called "Motion Blur Reduction", which allows us to adjust the smoothness of the image in films. Higher settings provide a more "theatrical" and smoothed effect, while lower settings maintain the original character of the film with a slight 24p effect. Interestingly, there is the "LED Clear Motion" feature, or BFI mode – which inserts black frames between the frames of the image to improve motion sharpness. However, in practice, the screen flickers significantly when this is activated, and it's best to treat this as more of an experiment rather than something that genuinely improves the gaming experience.

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

However, the TV has certain limitations that may affect gaming comfort. The 60 Hz panel does not allow for displaying signals with a higher refresh rate, which can impact image smoothness in dynamic games. The lack of support for G-Sync technology for PCs can 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 can still prove sufficient for less demanding users. Here we have an automatic gaming mode – when a game is launched on the console, the TV switches to low-latency mode by itself, significantly improving response time. We also find the 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 on the screen – as long as we stay within this range.

Unfortunately, that's about it when it comes to advantages. Add-ons like Game Bar or higher refresh rates are reserved for higher models of Samsung from the 2025 line. In theory, the TV also supports the HGiG feature, which should adjust the HDR image to the intentions of game developers. Unfortunately – despite this feature appearing in advertising brochures and store materials – its setup on the Xbox console turned out, in practice, to be... impossible.