TCL P7K / P79K vs Hisense E8Q

When it comes to assessing HDR performance, we need to be clear and straightforward without any marketing fluff: the P7K/P79K is not and never was meant to be a champion in this area. The maximum peak brightness that this panel can generate hovers around just 300 nits. This represents a threshold, a sort of thin red line between what can be considered barely satisfactory HDR signal and what is, in reality, only slightly better than standard dynamic range (SDR), unfortunately leaning towards the latter. Synthetic tests confirmed this harsh reality – our measurements taken during movie sessions showed that the luminance in key bright scenes rarely exceeded 200-250 nits. Therefore, this is not a TV that would allow content created in a wide tonal range to truly shine, and that must be openly acknowledged.

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

Since the E8Q is a twin of the U7Q, it’s no surprise that the HDR effect quality is almost identical. On paper, it looks promising – a peak brightness of 800 nits can impress in many scenes. Moments like light flashes in “The Meg” or shots of the sun in “Life of Pi” can indeed create a “wow” effect. But the longer we watch, the more we notice the limitations. The problem arises when small, bright details need to be shown against a dark background. In such situations, the dimming algorithms try to protect the contrast, but in the process, they also dim what should shine the brightest. Instead of dazzling details, we get almost invisible points of light. This is typical for Mini-LED in this price segment and is not surprising – but it’s worth knowing that the HDR effect will not always be fully preserved. Fortunately, the colour reproduction provides reasons to be pleased. A coverage of the DCI-P3 palette of about 94% is a very good result, and the quantum dot layer used (more precisely, PFS) does its job – colours are saturated and vibrant, especially with 4K content.

Every reliable assessment of image quality must start with selecting the most optimal, factory preset mode. In the case of the tested P7K/P79K model, the choice was made without hesitation for the "Film" mode. It is the mode that presents an image closest to the intentions of its creators, avoiding both the exaggerated brightness of the 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 without a few stumbles. The most noticeable shortcoming turned out to be the not entirely correctly set white balance. A slight dominance of the blue component gives the image a subtly cool, frosty character, straying from the ideal neutrality that the director intended to show us. The television handles the reproduction of greyscale in the standard dynamic range much better – the gamma curve is almost exemplary. The only slight reservation can be made for the darkest parts of the image, where a delicate deviation from the norm causes a loss of some detail in the shadows. The most significant challenge, however, for the TCL software was interpreting the HDR signal, as 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 mid-tones. Fortunately, most of these imperfections are of a software nature, which can be eliminated. With that thought in mind, we proceeded to the process of professional calibration.

Testing the Hisense E8Q in Filmmaker mode, we were hoping for a potentially neutral picture resembling the director's vision. Unfortunately – although it doesn't look too bad on paper (the colour reproduction errors aren't significant), in practice the image feels somewhat unnatural. The reason? The blue colour is boosted too strongly and there is a deficiency of red in the white balance. The effect? Scenes appear cool, and the white seems slightly bluish. Alongside the U7Q model, we also noticed a specific approach to brightness management here. The brightness reproduction curve for HDR content (EOTF) shows that the TV can significantly dim small, bright elements on the screen to maintain contrast – but sometimes it goes too far. On the other hand, it can excessively brighten larger, very bright areas, which disrupts tonal balance. It's a compromise that may not suit everyone – especially if you want a potentially faithful picture straight out of the box.

The calibration process turned out to be spot on, especially in the context of standard dynamic range (SDR) content. We successfully managed to eliminate the tendency of the television to showcase cool tones, restoring white to its natural neutrality. Moreover, the precise adjustment allowed us to correct a slight error in the gamma curve, enabling the darkest parts of the image to regain proper depth, without any signs of unnatural brightness. The results are measurable and impressive – in the ColorChecker test, the vast majority of colour reproduction errors fell below the perceptual threshold, achieving a deltaE value of below 2. This is a result that more expensive models would not be ashamed of. Unfortunately, in the case of HDR content, we encounter a wall in the form of the panel's structural limitations. And although we managed to bring the colours into line, the software's specifics mean that the television still adapts brightness in its own way, as evidenced by the persistent, non-standard EOTF curve. To summarise, calibration adds tremendous value, but it is important to be aware that it won't overcome certain physical barriers. The slightly elevated blacks, resulting from the lack of local dimming, and limited peak brightness mean that HDR content won't 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 viewing SDR material.

Calibration of the Movie mode yielded really good results, especially regarding SDR content. The white balance was successfully adjusted, giving the image a natural look – it appeared almost reference-level. The colours were well-saturated, and the overall experience of the content improved significantly. Unfortunately, when we switched to HDR materials, the familiar issues from the U7Q model returned. The TV still likes to "do its own thing," as seen from the analysis of the EOTF brightness characteristics – despite calibration, the E8Q still darkened small details in the shadows, while brighter parts of the screen were sometimes excessively boosted. In practice, this means that in darker scenes, some of the smallest details could simply disappear. Although it's worth noting that the entire calibration process brought a lot of good, not everything can be bypassed – even with the use of professional tools. The E8Q can impress with its picture, but in HDR content, its construction limitations become apparent, and it's worth keeping this in mind.

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

In the case of older materials of lower quality, gentle smoothing of tonal transitions often comes in handy. The Hisense E8Q, like the U7Q, has a "Smooth and Gradient Picture" feature, but unfortunately, its effectiveness leaves much to be desired. The "Low" setting is nearly invisible in operation, while higher settings blur details instead of improving transitions. The good news is that the feature does not compromise film grain, which means it does not degrade the structure of the image. On the positive side, scaling is commendable. The TV can reasonably convert older content to a higher resolution – without artificially accentuating contours or excessive sharpening. Although it doesn't match the best models in this category, it performs quite well for its class.

The issue of fluidity and sharpness of motion image 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 at the outset defines its capabilities and makes it hard to unequivocally recommend it to enthusiasts of dynamic sports broadcasts. During quick camera movements, the image loses sharpness, and the panel also shows a slight tendency to smudge, 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 decide on the final nature of the motion – from maintaining a fully cinematic, slightly jerky image, to achieving a very smooth, almost theatrical effect. It is a simple yet effective tool that allows one to adjust the viewing experience to their own preferences.

Similar to the U7Q, the E8Q model is a fast television designed with dynamic content in mind. It supports a 144 Hz refresh rate at 4K resolution, and if for some reason someone is still gaming in Full HD – it can even reach 240 Hz. This is a significant advantage, especially for PC users looking for maximum smoothness. In everyday use, the television performs very well. The “Ultra Motion Smoothness” mode gives us two sliders, allowing you to set the picture to your preference – whether it's more cinematic with the film frame preserved or highly smoothed, almost “TV show-like.” It's good that the manufacturer provides a choice here, instead of imposing one style. On sports material, live broadcasts, or in games – motion looks clean and stable. Sure, it’s not at the OLED level, but for this price range, the E8Q does a really good job.

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 set 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 rounded off with 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 effortlessly supports a high refresh rate signal of 120Hz, but at lower resolutions – 1080p and 1440p. This is fantastic news for console owners, who know how rarely games run in native 4K at a full 120 frames per second. The option to choose between higher resolution and doubled smoothness is therefore an incredibly sensible compromise.

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

Hisense E8Q does not hide its gaming pedigree. Just the specifications reveal that we are dealing with a television that will perform excellently as a gaming screen. Variable Refresh Rate (VRR)? It's there. Automatic Game Mode switching (ALLM)? That's there too. Additionally, there's impressive refreshment – 120 Hz in 4K or even 240 Hz in Full HD. Such a set is rare in this price segment. Everything runs smoothly and without major surprises. The only missing element – similar to the U7Q – remains support for HGiG. It's a shame because this feature facilitates adjusting the brightness curve to the capabilities of the specific television, enhancing visual fidelity with the intentions of HDR game developers. Without it, manual tweaking of the settings is necessary, which does not always yield a satisfying result.