Samsung QN900D Neo QLED 8K vs Philips OLED770

The Samsung QN900D easily showcases its high capabilities in light production during synthetic tests – 1400 nits is truly an impressive result. It also demonstrated these capabilities in the first scene of the movie "Life of Pi," where we see a brilliant burst of the rising sun. However, due to issues with the dimming algorithm, some problems can be observed here. In the test scenes from "Sicario 2" and the second scene from "Life of Pi," these values are not as high, averaging around 500-600 nits. While this may not be the worst result among Mini LED TVs, more could be expected given the price of the television. Nevertheless, the television deserves praise for covering a wide colour gamut of DCP P3 at 96%. Although there are technologies offering higher values, this result is still satisfactory.

The Philips OLED770 doesn't try to compete with the brightest OLEDs on the market, and it's actually hard to expect that, as it's the entry-level model in Philips' range for 2025. In our measurements, it reached a maximum of around 700 nits, which allows for enjoyment of HDR effects in scenes where light appears in spots – for instance, in the flash of headlights or a starry sky. In such moments, the picture can truly amaze. However, it's different when there are more bright elements on the screen. The TV, like many cheaper OLEDs, restricts luminance at that point, and the entire image noticeably dims. This was best seen in a scene from the movie The Meg, where the sun rises behind an oil platform – the brightness dropped to around 250 nits, which is almost three times less. The HDR effect remains pleasing to the eye, but it's worth being aware that this model performs best in scenes with less intense light. Fortunately, the OLED770 also has an ace up its sleeve – the coverage of the DCI-P3 colour palette is as high as 99%, so colours in movies and games are vibrant and very close to what the creator intended.

The QN900D television offers a Filmmaker mode that is designed to watch movies in the most natural way possible; however, this mode is not without its flaws. For HD content, the white balance shows a dominance of red and blue, which causes the image to shift towards pink hues. In contrast, for 4K HDR content, the situation is reversed – the reduction of blue and red levels results in warmer scenes and a shift towards yellow tones. This is confirmed by Color Checker tests, which clearly show that the colour samples veer in that direction.

When it comes to brightness and the associated contrast, the gamma is significantly distorted. The biggest issue is a noticeable jump at the beginning of the curve, indicating that dark details are overly brightened, causing the image to lose depth in the darkest areas - this is due to local dimming. For 4K HDR materials, the EOTF curve looks quite good, but it remains below the reference level, impacting the overall dynamics of the image.

The first measurements already show that the factory settings of the Philips OLED770 have a lot to improve, even in Filmmaker mode. The white balance chart clearly indicates a lack of blue, giving the image a slightly yellowish tint. In practice, white is not snow-like, but leans towards warmer hues – which some may even find appealing, but from a precision standpoint, this is a deviation from the norm. The gamma, on the other hand, tends to be on the darker side – the average value is around 2.6 instead of the reference 2.4. In mid-tones, the image appears muted and more saturated, which can look too "cinematic" but detracts a bit from the naturalness. However, the most significant issues are visible in colour reproduction. The average error is relatively high, and some colours – particularly shades of grey – deviate significantly from what should be seen. In everyday viewing, this means that sometimes colours may look less natural than we would wish.

After calibration, the Filmmaker mode can truly be called worthy of its name. The white balance for both HD and 4K HDR content has significantly improved, resulting in colours that are more natural and consistent. The image has gained in realism, with pink hues in HD content effectively eliminated, as well as the yellow haze in 4K HDR content. Thanks to the calibration, the television now offers much better colour reproduction, positively impacting the viewing experience.

When it comes to brightness, the situation with gamma is now the opposite – a clear drop is visible at the beginning of the graph, making the darkest details harder to discern. The EOTF curve for 4K HDR content has remained largely unchanged and is still below the reference level, indicating that the television still struggles to maintain adequate brightness. This is related to the aggressive dimming algorithm that affects the overall brightness of the image. You can see how the television fights to maintain high brightness or perfect black.

Despite the limitations associated with local dimming, the Samsung QN900D has improved in colour reproduction quality, as confirmed by the Color Checker test results – the colour samples are now much closer to the references, making the image more natural and pleasant to the eye.

Philips OLED770 had shown signs from the start that it harboured significant potential, but it was hard to fully appreciate this in its factory settings. The image was often too warm, and some colours appeared as if they had lost their naturalness along the way. Calibration revealed that this television was very amenable to work – it responded to every adjustment and almost immediately unveiled another layer of its capabilities. The white balance was set in both SDR and HDR so that the yellowish haze disappeared and a neutral, clear white emerged. Gamma stabilised closer to perfection, which helped restore the naturalness of mid-tones, while shadows ceased to be artificially darkened, perhaps even with a slight brightening effect. The result was obvious... Movies are watched with greater ease; the image has cinematic depth without the feeling that something is overly darkened. However, the most interesting aspect was working on the colours. Factory errors were not dramatic, but slightly noticeable – skin tones could be too warm, and grey wasn’t always the shade we expected. After calibration, the error values dropped to around 2, and in many cases even below 1. This is a level that is definitely lower than the threshold of discernibility for the human eye. In other words, after correction, the colours finally “clicked” into place. Looking at the screen, we felt like the television had begun to speak with a full voice. Like an instrument that had finally been properly tuned.

The fluidity of tonal transitions in lower-quality materials looks fantastic – the Noise Reduction feature very effectively smooths out tonal transitions while getting rid of film grain. Although the removal of grain isn't always desirable, the overall final effect is very aesthetically pleasing, especially for those who prefer a cleaner image.

When it comes to upscaling, or image scaling, QN900D shows the tremendous capabilities of the new processor with AI technology. Photos and materials in lower resolution are scaled while retaining many details – for example, a photo with a model looks amazing, free of unnecessary jagged edges, and the branches in the background are not overly serrated.

The problem of the previously mentioned colour connections can largely be mitigated thanks to the "distortion reduction" function, which is an algorithm for smoothing tonal transitions in Philips. It works best at a low level – effectively eliminating unwanted colour bands while not introducing strange artifacts or losing image detail. This is one of those features that is truly worth keeping on.

The issue of upscaling is somewhat less impressive. Images from lower resolution can be too soft, while in some parts the characteristic "jaggies" appear. The impression is that the algorithm is trying to reconcile two contradictory directions – smoothing and sharpening – and ultimately fails to find the golden mean. As a consolation, it's worth noting that the television does not have problems with overscan, meaning it does not cut off the edges of the image, which can sometimes happen in other competing models.

Samsung QN900D is currently the fastest television in the world – literally. A refresh rate of 240 Hz in 4K resolution is an amazing value that PC gamers will surely appreciate. As for movie fans, they won't be disappointed either – Samsung offers a 10-level scale in the picture clarity settings, allowing users to adjust the image. We can choose whether the television should provide a smoother, theatrical effect at the highest settings, or a more cinematic one, with a visible frame, at the lowest settings.

The issue of the panel in the Philips OLED770 is not entirely straightforward. The manufacturer claims a 120 Hz panel, but our measurements showed that the screen can accept a 4K signal even at 144 Hz. This sounds like great news – because who wouldn't want an additional mode for PC gamers at this price? However, the reality turned out to be more complex. With 120 Hz content, the television behaves like most OLEDs – the image is absolutely clear, with no trace of blurring or smearing, ideal for both dynamic games and sports broadcasts. The problem only arises at 144 Hz. Unlike models with official support for this frequency, here we see the phenomenon of so-called frame skipping. This means that the television is unable to display all the frames – some of them are skipped, causing motion to lose smoothness and double outlines to appear on the screen. The effect resembles the operation of the BFI function, which Philips does not offer in this model anyway.

Samsung QN900D is a television that offers excellent compatibility with consoles and a range of features that gamers will appreciate. It has 4 HDMI 2.1 ports, although unfortunately without the full bandwidth of 48 Gb/s. Nonetheless, for the average user, this is more than sufficient. Additionally, the television supports Auto Low Latency Mode (ALLM) and Variable Refresh Rate (VRR), which means smoother images and no screen tearing during dynamic gameplay. The G-Sync and FreeSync technologies are also noteworthy, providing optimal compatibility with consoles and computers equipped with the appropriate graphics cards, minimising stuttering effects and ensuring a smooth picture.

One of the unique features available only in Samsung televisions is the Xbox Game Pass app, which allows for game streaming without the need for a console. This is a very convenient solution that lets you enjoy your favourite games without having to purchase additional hardware. Furthermore, the QN900D has Game Bar – a special panel that enables quick access to gaming-related settings, making game mode setup quick and intuitive.

Another interesting feature is the Auto Motion Plus Game function, which is a special motion smoothing mode that can increase the frame rate (works up to a maximum of 4K@60Hz). Importantly, this does not cause a significant increase in input lag, allowing players to enjoy both greater image fluidity. All these features make the Samsung QN900D an excellent choice for those looking for a gaming television with the highest possible parameters.

If someone is looking for a TV for gaming, the Philips OLED770 is a candidate that's hard to overlook. The mere fact that this is an OLED gives it a great starting point – perfect blacks and infinite contrast make evening sessions in atmospheric games look like they've been taken straight out of a cinema. Added to that is the Ambilight system, which uses LEDs on the back of the TV to extend the image onto the wall behind the screen. The effect is such that even just playing FIFA can look like a small spectacle, and in horror games, the atmosphere becomes really thick. On the technical side, it's also quite decent. The Philips OLED770 supports variable refresh rate (VRR) up to 120 Hz, has an automatic mode for gamers (ALLM), and for those using an Xbox Series X, Dolby Vision support in games is also available. You just need to know that in this mode, the input lag is slightly higher than standard, although still at an acceptable level. As a bonus, we also get the 'Game Bar', which is a special tool strip for gamers. It's not the most conveniently designed solution, but it allows for a quick view of key parameters without exiting the game. Overall, this gives a picture of a TV that has all the most important gaming features on one hand, and on the other can add something unique – Ambilight. And it's this mix of technology and visual effect that makes the OLED770 one of the better screens for gaming in a home environment.