Philips PUS8079 vs Sony Bravia 8 (XR80)

The maximum brightness in content with a wide tonal range at a level of 202 nits is extremely low and, in practice, does not allow for watching films and series on streaming platforms in the highest quality. It is worth mentioning that in this case, the use of the HDR format equipped with dynamic metadata will not help either. Why won't it help? Because the only such format implemented in the television is HDR10+, which is extremely unpopular, and films recorded in this format are scarce. It is also worth noting that PUS8079 utilises WLED backlighting, which unfortunately is not the best solution, resulting in a coverage of the wide DCI-P3 colour gamut of only 80%. The result of this situation is significantly less intense colours in HDR content.

Sony Bravia 8 performs reasonably well in terms of HDR brightness. A maximum brightness level of 880 nits is satisfactory and allows for enjoyable light effects in most scenes. In the tested segments of the films Life of Pi and Sicario 2, the television looks really good, offering vibrant and detailed images that fully convey the atmosphere of these productions.

However, a greater challenge is presented by a scene from the film The Meg, where the screen is entirely very bright. In such situations, the limitations of OLED technology are evident, as the television loses brightness, dropping to about 450 nits. This decline is less satisfactory, especially when the entire scene requires intense lighting. Despite these limitations, Sony Bravia 8 remains a competitive model, offering excellent coverage of the DCI-P3 colour gamut and a BT.2020 standard coverage of 74%. As a result, colours are rich and details are precise, which significantly enhances the quality of HDR content consumption and makes viewing a pleasant experience.

The best factory mode in terms of colour reproduction and fidelity to the director's vision was "Film". Admittedly, it was the best among the pre-defined modes, although it had significant discrepancies between what the film's author wanted to convey and what the tested television displayed. Both in SDR and HDR materials (though to a lesser extent in the latter), the white balance, which is the most fundamental element responsible for image purity, turned out to be somewhat of a repeat of the vivid mode, with the blue tint known from displays on shop shelves. Moving directly to SDR materials and what is responsible for contrast, namely gamma, we see that it is significantly reduced. This leads to cutting down on an already limited contrast range and brightening the entire image. In the EOTF curve, which is responsible for the increase in brightness pace in HDR materials, we observe a sharp drop below the reference line, which, given the limited light output of the television, had a significant impact on the perception of these contents, which were even darker. We will not separate the assessments of the colours themselves, as in both cases they achieved astronomical deltaE values, being simply completely different from what they should be.

The best factory mode available on the Sony Bravia 8 television is IMAX Enhanced, which provides the most cinematic experience, although it is not perfectly set up. The television tries to faithfully reproduce cinematic settings, but certain shortcomings are noticeable. Starting with the white balance, both for SDR and 4K materials, a pronounced blue tint can be observed. This causes the image to appear too cold, stripping it of its naturalness. Tests using Colour Checker show that colours shift towards cooler tones, which may affect the accuracy of colour reproduction and make the image less realistic.

As for brightness and contrast characteristics, the gamma shows a significant drop at the end of the chart. This means that dark details may be too dark and bright elements too bright, resulting in a loss of subtlety and becoming less visible. As seen in the sky - in the comparative photo. In turn, the EOTF curve is well above the reference value, causing bright elements of the image to be too intense. As a result, users may perceive the image as unnatural, and bright areas may lose details, negatively impacting the overall viewing quality.

Fortunately, Philips implements advanced image correction tools in all its televisions. SDR materials benefited the most here, and the enormous deltaE errors were significantly corrected, both white balance and gamma underwent considerable reshaping. Although one cannot speak of a reference image here, it is definitely better, and films or series can be watched without causing headaches, and above all, eye strain. Naturally, HDR materials, due to the very low luminance of the television, could not be corrected to the same extent as those with a standard colour palette; however, the EOTF curve and white balance were roughly straightened out. Unfortunately, that was all we managed to squeeze out of our unit, although it should be noted that each unit is different and has completely different errors, smaller or larger.

The calibration process of the Sony Bravia 8 television has brought significant improvements in image quality. The white balance has been noticeably enhanced, for both SDR and 4K HDR content, with minimal errors in the middle of the graph. Gamma has proven to be one of the biggest beneficiaries of calibration – it has been completely rid of previous dips, which has significantly impacted brightness stability and better detail reproduction in the darker parts of the image. The EOTF curve has also been levelled, making bright elements of the image appear more natural, and the overall tonal dynamics are now more balanced.

However, the most attention should be paid to colour reproduction, where, despite calibration, certain issues still persist. Sony has omitted the use of a CMS system in this model, which allows for very precise control over colours. As a result, the Colour Checker test for 4K materials still shows significant errors in colour samples. Despite these difficulties, we recommend performing calibration, as the effects are noticeable and significantly enhance image quality, particularly in terms of brightness and contrast.

We will return once more to the issue of tonal transitions but in the context of the overall improvement of image quality. As we can observe in the photograph on the left side, the enhancement function for gradation works brilliantly. Moreover, it offers several settings, and each of them, even the lowest one, provides beneficial effects, and what’s more, it does not soften the effect of film grain. We will reiterate that this function is the greatest advantage of the tested television.

Next, we will take a look at image scaling. Here, the tested television performed worse. We can primarily notice severely jagged fine details and a characteristic white halo around the figures. One must not forget about the considerable artificial sharpening of the image.

The fluidity of tonal transitions in low-quality materials on the Bravia 8 is poor. Unfortunately, the soft gradation feature (which was available in previous models) is missing, which is a significant downside. The digital noise reduction feature can considerably improve tonal transitions; however, it also tends to remove some details, such as clouds in scenes from the film The Martian, which may not be to everyone's liking. As for digital processing, the Sony XR80 performs quite well. The model in test scenes was displayed without noticeable errors, and the branches in the background are not overly jagged. This shows that the Bravia 8 is capable of effectively processing complex low-resolution image details.

This paragraph, unlike the others, will be extremely short. The reason for this state of affairs is the lack of implementation of even the most basic motion smoothing function, which was to be expected, considering the price of the device. We also note that we are dealing with a VA panel, which in itself will not have the best sharpness under the sun. This type of panel is primarily associated with high contrast, which goes hand in hand with quite slow response times, as we can clearly read from the matrix analysis results. As you can see, from the photos taken in quick motion, the image is typically blurred for this type of panel. Although it will not be the ideal option, it can conditionally be used for watching sports, keeping in mind the less than optimal sharpness in motion. It is worth mentioning that movies will be characterised by judder, as the television does not have any, even the simplest, motion smoother.

Sony Bravia 8 offers a maximum refresh rate of 120 Hz, which forms the basis for smooth viewing of dynamic content such as sports and games. This ensures that movements are sharp and fluid. For more demanding users, the Sony XR80 television is equipped with an advanced motion smoothing system, which is divided into three segments: Smoothness (Film), Smoothness (Camera), and Clarity. The first two are responsible for regulating the degree of blur and smoothness of the image. The third option, concerning clarity, will be described in more detail below. Each of the parameters can be adjusted to personal preferences, allowing users to find the optimal setting tailored to their individual needs.

Philips PUS8079 offers only the most basic support for gaming in the form of ALLM, VRR, and a Game Bar. The most important information is that thanks to the implementation of the feature responsible for dynamic frequency changing, the picture is actually quite smooth for this price range and does not suffer from tearing.

A slightly greater nod towards gamers is the introduction of the Game Bar, allowing for real-time editing of settings. This means we won't have to exit the game to make any changes to the picture. Importantly, it has not been stripped of options known from higher models. Thus, we will find features such as shadow enhancement for better visibility in dark areas and a colour filter for players with visual impairments.

Sony Bravia 8 has significantly improved its compatibility with consoles compared to earlier models. The television supports variable refresh rate (VRR), which eliminates screen tearing, and it synchronises with graphics cards to ensure smooth image display. The automatic low latency mode (ALLM) reduces input lag, which is crucial in fast-paced games. Dolby Vision with low latency additionally provides impressive HDR effects that look stunning during gameplay.

The Sony XR80 television also features a Game Bar, allowing quick access to settings and monitoring parameters while gaming. An interesting option is the ability to enable a virtual crosshair on the screen, which can provide a slight edge in shooting games.

A downside is the lack of support for 1440p@120hz resolution, which could facilitate gaming for users with less powerful graphics cards. Additionally, the Sony XR80 only has two HDMI 2.1 ports, one of which is typically used to connect an audio system via eARC, limiting the number of available inputs for connecting next-generation consoles.