TCL P7K / P79K vs SAMSUNG S95F (TANDEM OLED 83")

When evaluating the HDR effect, we must make it clear and without marketing embellishment: the P7K/P79K is not and was never meant to be a master in this field. The maximum peak brightness that this panel can generate is only around 300 nits. This is a borderline value, a sort of thin red line between what can be considered a barely satisfactory HDR signal and what is really not much different from standard dynamic range (SDR), unfortunately leaning towards the latter. Synthetic tests found brutal confirmation in reality – our measurements taken during movie screenings showed that luminance in key bright parts of the content rarely exceeded the threshold of 200-250 nits. Therefore, this is not a television that would allow content produced in a wide tonal range to truly shine, and we must openly acknowledge that.

Unfortunately, the issue of color reproduction is presented equally restrained. Although the manufacturer positions this model in the "QLED" family, thanks to the use of a PFS LED filter, the results do not match the heightened expectations. The coverage of the wide DCI-P3 color gamut is only 86%. Compared to the market, this is at best an average result, as most devices that employ additional layers to expand the color spectrum easily achieve values at a minimum level of 90-92%.

Samsung S95F in the 83-inch variant with Tandem OLED panel also enchants with HDR effects. In test movie scenes, such as "Life of Pi" or "Sicario 2," where smaller light points dominate – stars in the night sky, the glow of the moon, or headlights – the television easily achieves brightness values exceeding 2000 nits. This is a result that not long ago seemed unattainable for OLEDs and places this model in the same category as the best Mini-LED designs.

The limitations of organic panels reveal themselves only in full-screen scenes completely filled with white. In the case of this model, for example, in the last shot from the movie The Meg, brightness drops to around 1000 nits – a bit lower than in the smaller QD-OLED variants, where the result remained around 1400 nits. Nevertheless, we are still talking about a remarkable result, unprecedented in OLED televisions of this size. Color reproduction is equally impressive. The new Tandem OLED panel essentially catches up with QD-OLED televisions, offering excellent coverage of a wide color gamut. The results are slightly weaker than those of QD-OLED, but in practice, they still provide an image whose intensity and naturalness of colors are hard to compare with any other television.

Every reliable image quality assessment must begin by selecting the most optimal factory mode. In the case of the tested model P7K/P79K, the choice was confidently made for the "Film" mode. It is this mode that presents an image closest to the creators' intentions, avoiding both the exaggerated brightness of dynamic mode and the excessive dimming known from eco settings. And it must be admitted that, for a device in this price range, the factory calibration is surprisingly decent, although it is not free from a few stumbles. The most noticeable flaw turned out to be an imperfectly adjusted white balance. A slight dominance of the blue component gives the image a subtly cool, chilly character, thus deviating from the exemplary neutrality that the director wanted to show us. The television performs much better in reproducing the grayscale in a standard dynamic range – the gamma curve is executed almost perfectly. A minor reservation can only be made for the darkest parts of the image, where a slight deviation from the norm causes a loss of some detail in the shadows. The most serious challenge for TCL's software, however, was the interpretation of the HDR signal, which is illustrated by the EOTF curve. The television follows its own, rather free path here – the darkest details are disproportionately brightened, followed by a noticeable slowdown in brightness increase for midtones. Fortunately, most of these imperfections are software-related issues that can be eliminated. With this thought in mind, we proceeded to the professional calibration process.

The best picture mode straight out of the box is undoubtedly Filmmaker Mode. This mode has been present in Samsung TVs for several years, and its intention is to reproduce the image as faithfully as possible to the creators' vision. In SDR content, it works reasonably well, although not without flaws. The picture is slightly dimmed, and the white balance tends to shift towards red and blue, resulting in a slight pinkish hue on the screen. Average color errors hover around ΔE values of 3–4, which is on the edge of what most people can perceive with the naked eye.

The limitations are much more apparent with HDR content. Here, a slight excess of blue in the white balance is not as big of a problem – the real issue becomes how the TV manages brightness. In many scenes, the picture looked as if it had been overexposed, and details in the dark could completely disappear. The final effect did not represent what the equipment of this class is capable of and led to significant color errors. It’s hard to understand why such a factory characteristic was chosen, as the HDR reception in this version definitely was not what it should be.

The calibration process turned out to be a home run, especially in the context of standard dynamic range (SDR) content. We successfully managed to eliminate the TV's tendency to emphasize cool tones, restoring the whites to their natural neutrality. Furthermore, precise adjustments allowed us to correct a slight error in the gamma curve, so the darkest areas of the image regained their proper depth, without a trace of unnatural brightening. The effects are measurable and impressive – in the ColorChecker test, the vast majority of color reproduction errors fell below the perceptual threshold, achieving a deltaE value below 2. This is a result that would not shame much more expensive constructions. Unfortunately, in the case of HDR content, we hit a wall in the form of the inherent limitations of the panel itself. And although we managed to bring the colors in line, the software's specifics mean that the TV still adapts brightness in its own way, as evidenced by the persistent, non-standard EOTF curve. In summary, calibration brings tremendous added value, but one must be aware that it cannot overcome certain physical barriers. A slight boost in black levels, resulting from the lack of local dimming, and limited peak brightness mean that HDR content will not always be able to showcase its full potential. This is simply not the main task of this display; its true strength, especially after professional tuning, lies in the viewing of SDR materials.

After calibration, the S95F shows what it is truly capable of. The white balance was corrected, and minor inaccuracies were adjusted, making the image in SDR content look almost exemplary. Color differences have dropped below the level that the human eye can detect – looking at the screen, one simply feels a full sense of naturalness and color coherence.

In HDR, the improvement is equally noticeable. The television handles brightness much better, eliminating the "blowing out" effect of the entire frame. Bright scenes are more controlled, and blacks retain more detail, although sometimes there may still be slight brightening of the image as a whole. Nevertheless, after calibration, the S95F delivers an image that can confidently be called one of the best on the market – regardless of whether we are watching films in SDR or spectacular productions in HDR.

After a series of harsh evaluations, fortunately, the time comes for praise, and this is due to the TCL AiPQ image processor for its work in digital processing and content scaling. It should be noted right away that we are not talking about the level known from flagship designs; nevertheless, in the price segment represented by the P7K/P79K, the results achieved are more than solid. The feature that smooths tonal transitions performs particularly well, effectively eliminating posterization, which are the characteristic bands often visible in materials with higher compression, such as from the YouTube service. The algorithm can elegantly remove unwanted gradients, which ultimately looks really good. The television also competently handles upscaling, which is the task of raising low-resolution materials to 4K standard. The output image, although it may seem a bit too sharp out of the box, fortunately, is not a problem. The software allows for easy adjustment of this parameter using a sharpness slider, so the final appearance can be easily tailored to personal preferences.

The Samsung S95F model features a noise reduction function aimed at improving the fluidity of tonal transitions. Its performance is hard to call ineffective – on the contrary, it can excessively interfere with the image. Older films or materials of lower quality, such as those from YouTube, take on a soft, smoothed character because of it, reminiscent of a painted effect. The problem is that along with the noise, the natural film grain, which gives the image a cinematic quality, also disappears. Fortunately, the function does not blur essential details, so its use is more a matter of taste. If someone prefers a slightly polished and smooth image, it’s worth turning it on, but in our opinion, the most sensible setting is “Standard”.

Upscaling leaves a better impression. The S95F efficiently enhances the quality of lower resolution content – even 576p video looks quite good, although some minor artifacts in the form of blockiness can be noticed. Overall, the effect is very solid, although when compared to the competition – such as the Sony Bravia 8 (II) or LG G5 – it can be seen that those models can extract a bit more from the image. However, it's worth remembering one inconvenience: with older films and photos, there is an overscan issue that causes a slight cropping of the left edge of the image.

The issue of fluidity and sharpness of the image in motion is inextricably linked to the fundamental parameter of the panel, and in the case of the TCL P7K/P79K, we are dealing with a panel that has a native refresh rate of 60 Hz. This specification already defines its capabilities and makes it difficult to unequivocally recommend it to enthusiasts of dynamic sports broadcasts. During rapid camera movements, the image loses sharpness, and the panel itself also shows a slight tendency to blur, which may be noticeable to more sensitive viewers. Fortunately, not everything in this aspect has been left to chance. The manufacturer has implemented a simple motion smoothing system, which is primarily used in film materials recorded at 24 or 30 frames per second. Thanks to a dedicated slider, the user can independently decide on the final character of the motion – from a fully cinematic, slightly juddery image to achieving a very smooth, almost theatrical effect. It is a simple yet effective tool that allows users to tailor the viewing experience to their own preferences.

In the case of the 83-inch S95F with a Tandem OLED panel, the motion smoothness also makes a huge impression. The panel in native 4K resolution offers a refresh rate of 165 Hz, and this combined with organic technology makes games and sports look remarkable. Additionally, the manufacturer added a film smoother and a motion blur reduction system, allowing each viewer to adjust the image to their own preferences – whether it's a more "frame-rate" cinematic effect or a smooth, almost theatrical spectacle.

Although on paper the native 4K@60Hz matrix might suggest that the TCL P7K/P79K is not a TV tailored for gamers, the reality turns out to be surprisingly different. On the contrary, the manufacturer has ensured a rich package of features that make it a very friendly companion for next-generation consoles. Onboard, we find key technologies such as ALLM, which provides automatic switching to low-latency mode, and VRR, or variable refresh rate, which eliminates screen tearing. The list is completed by support for Dolby Vision Gaming and a simple yet functional Game Bar. However, the real and extremely pleasant surprise is something else. It turns out that the TV easily supports high refresh rate signals of 120 Hz, but at lower resolutions – 1080p and 1440p. This is fantastic news for console owners who know full well how rarely games run in native 4K at a full 120 frames per second. The ability to choose between higher resolution and doubled smoothness is therefore an extremely sensible compromise.

In summary, although the P7K/P79K may not be the target screen for the most avid tournament gamers, it offers a package of options for the casual or occasional console user that is hard to find among many competitors at this price point.

The low trailing and phenomenal motion fluidity, which are the hallmarks of OLED technology, are just the warm-up. The Samsung S95F has been designed with gamers in mind – and this is evident at every turn. Four HDMI 2.1 ports with a bandwidth of 40 Gb/s may sound like a compromise on paper, but in practice, neither consoles nor PCs will experience the slightest limitations. On board is a complete set of gaming features: variable refresh rate (VRR), automatic low latency mode (ALLM), and a flawlessly implemented HGiG standard, which allows you to enjoy HDR exactly as the creators intended. All of this is complemented by Game Bar – an intuitive control center where you can check and adjust the most important settings in seconds.

Particular attention should also be paid to Game Motion Plus, Samsung's own smoothing technology. It can add extra fluidity to animations, which can be a lifesaver in games running at 60 frames, where stability doesn't always hold up. Indeed, support for Dolby Vision in games is missing, but it's hard to consider this a serious flaw – the manufacturer compensates for this gap with other solutions. The S95F is one of the absolute favorites for the title of the best gaming TV on today's market.