TCL C655 / C69B (55"-85") vs Samsung U8000F (IPS)

Overall, the quality of the HDR effect in TCL C655 / C69B looks quite promising. The average value in the test patterns is around 450 nits, which already allows you to feel the light effects and better image dynamics. However, as mentioned earlier, this effect may be somewhat subdued by slight differences in bright and dark shades, resulting from the lack of local dimming technology. However, the DCI-P3 colour gamut coverage of 94% deserves high praise, and this is possible due to the use of a quantum dot (QLED) panel. This makes the colours vibrant and well-reproduced when watching HDR content.

Better doesn't mean good – and that's exactly how you can sum up the capabilities of the U8092F when it comes to displaying bright movie scenes in HDR mode. The brightness of the panel is just under 250 nits, which is definitely too low to enjoy any light effects. An interesting situation was observed during measurements of the fourth scene from the movie Sicario 2 – the television clearly dimmed the entire screen in an attempt to achieve better black levels (which still remain weak). One could even suggest that the device employs some form of "global dimming," but unfortunately – the effects are still very poor. To make matters worse, the television does not support a wide colour gamut – the coverage of the DCI-P3 space is around 80%, so don’t count on truly vibrant colours. The HDR image here looks more like slightly brightened SDR, and that’s the approach we would suggest you stick to when it comes to this television.

The TCL C655 / C69B television offers a film mode that has been tested for colour reproduction quality. Although this mode is called film mode, it unfortunately has quite a few errors that the director would certainly not want to see when filming their work. Starting with image analysis, it's worth looking at the white balance – both in HD content and 4K HDR, the white balance has significant issues. In both cases, the red colour dominates, resulting in colours that are too warm, with an overall pink or yellow tint. This can be seen in the image below from the film "Star Wars." The Colour Checker test confirms these errors – the colour samples stray into incorrect shades, affecting the overall colour fidelity. The brightness characteristics are a lesser issue. However, they are not without flaws either. The gamma chart shows a strong spike at the beginning, which can cause the image to be overly bright, and the EOTF curve responsible for brightness in 4K HDR content also has significant fluctuations – it's evident how the television tries to maintain appropriate brightness, but it doesn't always succeed effectively.

Samsung U8000F has been tested in the best possible built-in picture mode on the television, which is Filmmaker Mode. This mode should – at least in theory – provide a cinematic, reference image without unnecessary enhancements. For SDR content (mainly HD/SD), the television presented itself surprisingly well out of the box. White balance errors hovered around a value of 3, which is roughly on the edge of perceptibility. The only criticism could be directed at brightness management – the gamma chart showed a slight tendency to brighten or darken certain sections, but overall it performs quite well for this price segment.

Unfortunately, it looks much worse in HDR mode. Although the white balance was not terrible, the television had significant colour errors – particularly evident on the Color Checker chart, where almost every sample fell outside the target point. The image in HDR simply looks unnatural, and the colours can be shifted, muted, or too cool. This largely stems from the fact that U8000F does not support a wide colour gamut (DCI-P3). The television is physically unable to display correct colours in the HDR standard – and this is unfortunately felt in every more demanding material.

After calibrating the movie mode of the television TCL C655 / C69B , the white balance has been adjusted, and the colours look as they should – which is confirmed by only slight deviations in the Colour Checker test. The gamma is really good, which ensures that the television shouldn't have any issues with brightness in low-resolution material. Unfortunately, a similar EOTF characteristic is still noticeable, which is a natural occurrence in televisions that do not have local dimming – they simply struggle to "shine" brighter in a given part of the screen. Despite this design limitation, which cannot be bypassed, we recommend making adjustments in the settings, as the overall colour presentation looks really very good.

Even though the U8000F already offered a fairly good picture in SDR straight out of the box, we managed to tweak it a bit more. We were able to remove a slight purple tint and adjust the gamma to a more reasonable level. However, the television still tends to over-brighten the smallest and brightest parts of the image – the gamma chart shows a characteristic "dip" that is hard to fully straighten out.

Unfortunately, the situation looks worse in HDR. It's difficult to talk about any significant improvement here – the television simply isn't designed for HDR content. We tried to adjust the picture in the advanced settings, but despite our efforts, the colour errors remained quite noticeable – a delta E above 7 is already significantly visible deviations. It's a bit unfortunate, but that's the charm of a budget build. In SDR, the U8000F performs reasonably, whereas HDR is simply not its league.

Television TCL C655 / C69B handles tonal transitions in low-quality materials fairly well. The "Gradual Smoothing" feature on low settings effectively smooths out tonal transitions, but it also blurs important details, such as the texture of objects. A positive aspect is that it does not negatively affect film grain, which helps to maintain the natural look of the image. In terms of digital processing, the television adds artificial sharpness, which some users who prefer a sharper image might appreciate. However, for those who prefer a softer look, this may be a drawback. Another downside is that the image has been significantly cropped due to the so-called overscan, which reduces the field of view and cuts off the edges of the image.

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 place in the offering.

This year's model has been equipped with a function to improve the smoothness of tonal transitions, which has been implemented significantly better than last year. Yes, the TV still uses quite strong algorithms that can distort details or remove film grain, but even so – it can be confidently said that it operates effectively.

However, not everything has gone perfectly. The U8000F has noticeable issues with slight frame stuttering when watching very old content in very low resolution. If someone plans to play their old VHS tape, they must be aware that the picture may appear slightly "choppy".

The television C655 / C69B is equipped with a 4K@60 Hz panel, which means it's best suited for watching movies and less dynamic content. It also features a "Flicker Reduction" function, allowing users to adjust the smoothness of the image – they can choose whether they prefer smoother motion or a more cinematic, frame-like effect. The television can also adapt to lower resolutions, such as Full HD and 2K at 120 Hz, which will surely please gamers by offering a smoother image at the cost of resolution. It’s worth noting that this feature is available in sizes starting from 55"+. Additionally, the largest variant, 98", is equipped with a 144Hz panel with full motion smoothing.

Samsung U8000F is equipped with a 60 Hz panel, so right from the start, it's clear that we shouldn't expect miracles. This is simply the standard in this class – sufficient for everyday viewing, but without any fireworks.

The television offers one motion smoothing slider – a feature called “Motion Blur Reduction”, which allows us to adjust the smoothness of the image in movies. Higher settings provide a more “theatrical” and smoothed effect, while lower ones maintain the original character of the film with a slight 24p effect. An interesting feature is “Clear Motion LED”, or BFI mode – which inserts black frames between the image frames to enhance motion clarity. However, in practice, the screen flickers significantly when it's activated, and it's better viewed as an experiment rather than something that truly enhances gaming comfort.

The TCL C655 / C69B TV offers an almost perfect set of features for gamers, supporting all the key technologies. It has an ALLM feature that automatically switches the TV to low latency mode, significantly improving responsiveness and minimising signal lag, which is especially important during dynamic gameplay. The VRR feature allows synchronisation of the screen refresh rate with the number of frames generated by the console, eliminating screen tearing and providing smoother gameplay.

The TV also supports Dolby Vision in gaming mode, ensuring better colour and contrast reproduction in games that support this format, and the Game Bar enables quick access to gameplay-related settings, such as response time, latency level, and other parameters. Unfortunately, the C655 / C69B does not support 4K resolution at 120 Hz (the 98" variant is the exception), which may be disappointing for more demanding gamers seeking the ultimate smoothness in high-resolution games. However, if we can forgo 4K, the TV offers support for Full HD and 2K at 120 Hz, providing a smoother image and serving as a great alternative for those who prefer higher refresh rates at the expense of resolution.

Samsung U8000F offers a basic set of features for gamers, which may still be sufficient for less demanding users. It has an automatic game mode – when a game is launched on the console, the TV automatically switches to low latency mode, which significantly improves response time. It also includes a VRR function, or variable refresh rate, which works within the range of 48 to 60 Hz. This means that both Xbox and PS5 won't produce the "tearing" effect – as long as we stay within this range.

And unfortunately, that's about it for the advantages. Additional features like Game Bar or higher refresh rates are reserved for higher models of Samsung’s 2025 line. In theory, the TV also supports the HGiG function, which should adjust the HDR image to the intentions of game developers. Unfortunately – although this function appears in brochures and store materials – its setup on the Xbox console turned out to be... impossible in practice.