TCL C855 vs Samsung Neo QLED QN95D

The TCL C855 delivers a highly varied HDR effect. At times, the television truly excels, while at other moments, it appears reminiscent of a low-end model equipped with FALD backlighting. Inconsistency is frequently found with this brand, so it didn’t come as a surprise. The first and last scenes, which feature large light elements, are nothing short of spectacular, boasting brightness levels of 1470 and 1820 nits, respectively. Such brightness can make viewers squint their eyes, allowing them to feel the extraordinary dynamism of the scene. It genuinely immerses the audience, creating a sensation of being inside the movie itself. However, the situation shifts dramatically when small or subtle elements with high luminance appear against a dark background. In these instances, the TCL C855 significantly reduces brightness to levels as low as 240 nits to mitigate halo effects. This reduction is disappointing, as it can make the movie appear as if it was not filmed in HDR. Despite these shortcomings, the HDR effect on the TCL C855 enhances the viewing experience during dynamic scenes, making it feel more engaging and allowing the viewer to feel part of the action. Even with smaller high-luminance elements, the television retains details without excessive dimming. Additionally, the TCL C855 adjusts image brightness according to scenes with rich detail, further enhancing viewing comfort.

The Samsung QN95D excels in HDR performance, achieving an impressive peak brightness of approximately 2000 nits. In tested movie scenes with fully lit screens, the television delivers an intense and realistic representation of HDR content, significantly enhancing the viewing experience. However, as with its handling of contrast, the dimming algorithm occasionally reveals limitations.

Despite the large number of Mini LED zones, the television doesn’t consistently provide extraordinary brightness. For instance, in scenes from "Life of Pi," featuring a bright moon against a dark background, and excerpts from "Sicario 2," showcasing intense light effects on dark backdrops, the QN95D underperforms. In such instances, the television mitigates halo effects by dimming the image to a level closer to SDR quality. While this ensures deep and uniform blacks, it comes at the cost of losing some detail in bright areas. This compromise is intended to preserve black quality but can detract from the image’s dynamism.

Despite these occasional shortcomings in the local dimming algorithm, the QN95D deserves commendation for its wide coverage of the DCI-P3 colour gamut. Thanks to the quantum dot coating, also known as QLED technology, the television produces vibrant and richly saturated colours, adding to its appeal for HDR content.

The best factory mode for the TCL C855 is the "Film" setting, and all our tests were conducted using this mode. However, like many predefined modes, it has flaws that should be addressed to achieve an image closer to the producer's original vision. In our examination of the colour characteristics for both SDR and HDR materials, issues were found.

Focusing first on SDR content, there is a noticeable dominance of green in the white balance, which leads to an unpleasant greenish tint across the entire image. The gamma chart, crucial for image contrast, shows a significant deviation from the reference line marked at 2.4. Initially, there is a pronounced spike in the measured value, resulting in an over-contrasted image where details can merge into a dark blob. This condition persists for nearly 20% of the chart before it dips below the reference line, causing the image to brighten and resulting in a substantial drop in contrast.

In HDR materials, the factory mode performs somewhat better; the white balance appears more balanced overall, although the green tint resurfaces in the latter half of the spectrum. When we look at the Electro-Optical Transfer Function (EOTF) curve—unlike gamma, which reflects contrast—we identify two main errors: the darkest scenes are too dark, while the brightest ones become overexposed. This discrepancy was evident in our review of the scene from the movie "Pan," further illustrating the TCL C855's HDR performance issues.

The Samsung QN95D was evaluated for factory colour reproduction in Filmmaker mode, which provides the manufacturer’s optimised settings. While this mode delivers good performance, it is not without shortcomings. For HD content, notable colour deviations were observed, particularly in white balance, where a red tint dominated the chart. Improvements were noted with 4K HDR content; however, significant deficiencies in blue colour reproduction persist. This is evident in scenes such as those from Star Wars, where the main character appears in tones that are warmer than intended.

Regarding contrast, the gamma chart reveals an initial steep rise, demonstrating the television’s capability to emphasise brighter image areas effectively. However, the chart also shows a clear dip at the lower end, suggesting a potential loss of detail in darker tones. This gamma curve shape could impact the clarity of dark scenes, where details may appear overly blurred or obscured. Additionally, the brightness curve (EOTF) was mostly accurate, aside from an initial drop.

Despite these minor issues, the QN95D boasts impressive features and cutting-edge technology that solidify its position as one of the top televisions on the market. However, refinements in colour accuracy and contrast are needed to maximise its potential fully.

TCL, like most manufacturers, offers advanced calibration tools within its televisions. These include both 2-point and 20-point adjustments for grayscale, as well as a comprehensive colour management system. As a result, we achieved impressive results in SDR materials, bringing the image significantly closer to the reference standard. We successfully eliminated both the green tint and the gamma issue, although a slight "kink" at the very beginning of the gamma curve still persists.

In contrast, the situation with HDR materials was less favourable, as the TCL C855 did not allow for precise modelling. We were only able to make minor adjustments to the EOTF curve while significantly enhancing the overall colour accuracy. This limitation suggests that while calibration tools are effective, they may require further refinement for optimal HDR performance.

After calibration, the Samsung QN95D delivers truly impressive results. The white balance is perfectly aligned, with error readings rarely exceeding 2, indicating faithful colour reproduction. Most samples from the Colour Checker test fall well within an acceptable error range, confirming the television's excellent performance in accurately displaying colours. Contrast has also improved significantly, and the gamma curve has become more stable, ensuring better visibility of details in both dark and bright scenes.

However, the EOTF (Electro-Optical Transfer Function) curve still shows a slight divergence in film tests. While the television performs well in most scenarios, some details in black may still be lost in extreme cases due to the aggressive dimming algorithm.

Despite these minor imperfections, the overall image quality remains outstanding. After calibration, the Samsung QN95D impresses with its visual performance, offering an exceptional experience that will satisfy anyone seeking a top-tier television.

Once again, we will take a look at the function of smoothing tonal transitions, but this time also image scaling. The latter is particularly important when watching materials of lower quality, such as some television programs or older films. We will focus on the function responsible for tonal transitions. Interestingly, just like in the scenes from the previous test where it performed excellently and smoothed out practically all the inconsistencies, here it had issues. Using the menu responsible for the operation of this function, we found that no setting—even the strongest—was helpful.

Image scaling in TCL C855 is defined as one of the best we have had the opportunity to test so far. The image is sharp, but in a way that could be described as natural to our eye. Even small, fine branches do not have jagged edges, and there is no white halo around figures, a characteristic of weaker scaling systems.

The Samsung QN95D television handles tonal transitions even in lower-quality materials, thanks to the noise reduction feature that works like a gentle gradation. This function is extremely effective, smoothing out the image and eliminating unwanted noise, thus significantly improving the quality of the displayed material. However, as is often the case, overly good effectiveness can lead to unintended side effects. In the case of some materials, this feature may also blur elements that should remain clear, such as film grain.

Despite this, the television performs well in terms of image scaling, eliminating larger jagged edges. In a scene where branches are visible, they are not overly artificially sharpened, which allows for a natural look, and the model does not have an artificial outline. Overall, even in more challenging conditions, the footage is presented satisfactorily on the Samsung QN95D. The only downside when watching HD/SD content (such as regular terrestrial television) is the fact that the image is slightly cropped - this is caused by the so-called overscan, which cannot be turned off.

The maximum refresh rate you can set on the TCL C855 is 144 Hz. Naturally, this is only possible after connecting the TCL C855 TV to a very powerful PC. Otherwise, we will be operating at a maximum refresh rate of 120 Hz, which is recommended if we want to watch primarily sports or materials with a lot of motion dynamics. For those who require high image fluidity, the manufacturer has implemented a multi-stage motion smoother. It is divided into two separate sliders which control the sharpness of moving images (Motion Blur Reduction) and flicker (Flicker Reduction). Both sliders can be adjusted from 0 to 10, with each level affecting the degree of fluidity, so everyone can find their sweet spot. We present a setting that allows for slight smoothing without the soap opera effect. The matrix of the TCL C855 features a very good response time. This is particularly important since VA panels often struggle with the so-called ghosting effect, where a black halo can be observed behind a fast-moving object. where a black halo can be observed behind a fast-moving object.

The Samsung QN95D panel excels in motion blur and fluidity, offering a 120 Hz refresh rate along with features designed to reduce blur and judder. This allows users to adjust the picture settings to their liking, whether for movie watching or dynamic sports broadcasts. The television provides a 10-point scale for adjusting image smoothness, ranging from a frame-like appearance reminiscent of traditional film to a smoother, more cinematic effect, which is especially beneficial for sports broadcasts. This level of customization enhances the viewing experience across various types of content.

The TCL C855 TV has fully-featured HDMI 2.1 ports, boasting a full bandwidth of 48 Gb/s. During our testing, we confirmed the seamless operation of all functions included in this connection standard. As highlighted, all checkboxes are illuminated in green, a feature that will undoubtedly be appreciated by gamers, whether on consoles or those using the TV as a computer monitor. Additionally, the TCL C855 supports both AMD FreeSync and NVIDIA's G-Sync, which can be easily activated in the graphics card settings. Those with powerful configurations can feed a 144 Hz signal to the C855, which handles this effortlessly. It is also worth noting the implementation of the HGIG mode, which can be excessively bright due to the shortcomings of the "Game" mode, making proper configuration on the screen challenging. Fortunately, the TV excels with the Dolby Vision format.

TCL, as one of the pioneering manufacturers, has equipped its televisions with a special GameBar, allowing for extensive adjustment of settings "on the fly" without the need to exit the game. This feature includes options like an additional crosshair grid, black level correction, and settings designed for individuals with disabilities. The image showcases the next generation of this solution.

In summary, the TCL C855 TV is an ideal choice for those seeking a screen for all forms of electronic gaming. With comprehensive features supporting such entertainment, it provides an extremely engaging experience. It is also important to emphasise that it maintains very low input lag, regardless of the selected settings, including when using the Dolby Vision HDR format.

The Samsung QN95D offers several features that gamers will appreciate. First, the TV supports a variable refresh rate (VRR), which eliminates screen tearing and provides smoother gameplay, especially in dynamic scenes. It also includes an automatic game mode (ALLM) that switches the TV to low latency mode when a connected console or computer is detected, resulting in more responsive controls.

Additionally, the QN95D has a game mode that reduces input lag to an impressively low level, which is vital for games where quick reflexes matter. With a high refresh rate of 120 Hz, the image remains exceptionally smooth, enhancing the experience of fast-paced action games and sports. The TV also supports G-Sync and FreeSync technologies, further improving gameplay and user comfort. An interesting addition is the 'Game Bar' – a special menu that provides easy access to all gaming-related settings, allowing users to quickly adjust the image and other parameters without interrupting gameplay.

While the Samsung QN95D does not support Dolby Vision, which is typical for Samsung models, it does feature HGiG functionality, ensuring that HDR games are displayed with the appropriate image quality in line with the creators' intentions.