Samsung Q60D / Q67D / Q68D vs TCL P7K / P79K

The Samsung Q60D consistently achieves brightness levels above 500 nits, which is above average for its class of devices. This level of brightness enhances the viewing experience, providing a more immersive home cinema feel, with clearly visible details in bright areas of the image and well-rendered contrast dynamics, especially when watching content from streaming platforms or Blu-ray discs. As a result, movie screenings gain added depth and realism, particularly in well-lit scenes.

However, despite incorporating quantum dot technology (QLED), the TV does not excel in colour reproduction. The DCI-P3 colour space coverage is limited to 90%, which may become apparent in more demanding scenes where the richness and saturation of colours are crucial for image quality. While the Q60D offers solid performance, those seeking more vibrant and accurate colour reproduction may notice some limitations.

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%.

For several years, Samsung has included a "Filmmaker" mode in its televisions, designed to deliver picture settings that remain true to the original vision of filmmakers straight out of the box. This is undoubtedly a significant move towards achieving cinematic quality at home, but it's important to note that this mode is not without its drawbacks.

For instance, the white balance in both SDR and HDR modes tends to show an excessive amount of red, resulting in an overly warm image. This can cause actors' skin tones and brighter scenes to appear unnaturally pink. The Colour Checker test confirms this issue, as colour samples often shift towards red hues, deviating from the neutral colour representation that would be preferred in a professional context.

In terms of contrast, there is a noticeable dip at the start of the gamma curve, where values below 2.4 fall to around 2.1. This can make darker scenes look less detailed, diminishing their depth. When displaying HDR content, the EOTF curve (which handles brightness representation) shows a significant peak at the beginning of the graph, potentially leading to excessive brightness in lighter areas of the image and disrupting the natural tonal balance.

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.

After professional calibration of the Samsung Q60D in film mode, users can experience a notable enhancement in image quality. Samsung TVs have long featured both 2- and 20-point grayscale adjustments, and an advanced Colour Management System (CMS), enabling precise tuning of colour and hue. Following calibration, the white balance for both SDR and HDR content is free from significant peaks and red tone shifts, resulting in a more natural image. Although a few larger errors may still be evident in HDR mode, the overall improvement in colour accuracy is impressive.

In terms of contrast, despite the inherent limitations of the TV’s technology, there has been a marked improvement. Calibration enhances the visibility of details in darker scenes and accentuates the differences between lighter and darker elements, making the image appear more dynamic. This leads to a more satisfying viewing experience, with improved depth and realism in the displayed content.

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.

However, when it comes to processing and scaling lower-quality content, the TV performs quite well. The image is displayed without overscan, ensuring the full use of the available screen space. Additionally, the edges of models or tree branches are not overly jagged, resulting in satisfactory content quality. While noise reduction could be more effective, the overall processing of lower-quality materials is positive and meets expectations.

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 Q60D is equipped with a 60 Hz panel and includes a feature known as "Motion Reduction," designed to minimise motion blur and improve the overall fluidity of the image. This addition is particularly beneficial for users who enjoy watching films and series, providing a smoother visual experience even during dynamic action scenes where detail is essential. However, while "Motion Reduction" enhances the viewing experience for cinematic content, it is important to note that this panel may not be the optimal choice for gaming due to a noticeable motion blur effect, which can become apparent during fast-paced gameplay.

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.

The Samsung Q60D has gaming features such as ALLM (Auto Low Latency Mode), HGiG (HDR Gaming Interest Group), and Game Bar, which contribute positively to gaming experiences by optimising response times and enhancing HDR visuals. However, the absence of HDMI 2.1 support limits the TV's potential, preventing the use of VRR (Variable Refresh Rate) which could further boost smoothness and image consistency. For casual gamers the Q60D should suffice, delivering satisfactory performance during typical gameplay. On the other hand, for more discerning gamers, models with a higher refresh rate and HDMI 2.1 support are recommended. Such upgrades enable full functionality and better compatibility with the latest games, ensuring smoother motion and superior image quality – essential for an immersive and top-tier gaming experience.

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.