LG QNED91T6A vs Samsung OLED S85F (QD-OLED)

As befits a MiniLED television, QNED91T LG easily exceeds the magic barrier of 1000 nits on the luminance chart. In scenes where light played a key role, the effect was truly decent. For example, 1000 nits in the first scene of "Life of Pi" is really an impressive value, and the 600 nits achieved in scenes three and five allowed us to feel the true magic of HDR. However, problems arise with very small light elements on the screen, such as the moon, lanterns, or lamps. A value of around 100 nits - to put it bluntly - is disappointing, as these elements are so dark that they are barely visible. It is worth praising the television for covering the DCI-P3 colour gamut at 96% and BT.2020 at 75%. LG QNED91T leaves us with mixed feelings, mainly due to very aggressive dimming algorithms, which, while effectively eliminating the halo effect, do impact the brightness of smaller elements.

As an OLED, the Samsung S85F can really shine – literally. Under favorable conditions, it can generate brightness exceeding 750 nits. This is hugely significant because most movies are created with displays around 1000 nits in mind. In practice, this means that in scenes with moderately large bright elements, the image can look simply fantastic. However, it's not always so rosy. When there is a massive amount of light on the screen – whether it's a vast bright background or an entire screen filled with white – the S85F must tone it down. The brightness can drop by even four times in such scenes. This limitation is known to basically every OLED in this price range, so we don't consider it a particular failing. However, something that deserves praise is what sets this model apart from the competition – color gamut coverage. Thanks to the QD-OLED panel, our colorimeter showed values exceeding 100% DCI-P3 coverage and as high as 86% for the ultra-wide BT.2020 palette. Such results are hard to find even in televisions that cost several times more.

We conduct all our tests in the best picture mode on each TV. In this case, as usual, it is the Filmmaker mode. The name of the mode suggests perfect colour reproduction; however, there were noticeable deviations from the correct image. Our unit, in terms of white balance, showed a significant drop in shades of blue - both in SDR and 4K HDR material - which caused a clear yellowing of the image, noticeable in comparison scenes from the film with Tom Cruise. As we described earlier, QNED91T has some tendencies to brighten the screen. This is confirmed by the gamma, which is significantly lower than the reference value of 2.4. On the other hand, the EOTF curve, responsible for brightness in 4K content, showed some issues with the TV dimming the image in the darkest areas, which we could observe in the paragraph describing HDR effect quality. Although the Filmmaker mode is quite a decent "out of the box" mode, it still requires some adjustments.

Samsung, as befits a manufacturer with ambitions, equipped the S85F with a mode called Filmmaker. Its task is simple: to make the colors on the newly purchased television as true to what the director wanted us to see as possible. Sounds great… but, as often happens, a great-sounding theory doesn’t always translate into perfect practice.

In the tested unit, it quickly became apparent that the image – due to an excess of blue and red – looked as if someone had overdone the saturation a bit. As a result, quite significant color errors appeared, particularly in 4K content. To make matters worse, there was a brightness issue – the S85F could brighten most scenes more than it should, taking away their intended mood.

Fortunately, Samsung televisions, including the S85F, offer an impressive number of settings for advanced calibrators. This means we could check what this panel is truly capable of when it gets into the right hands.

LG offers advanced calibration tools in its televisions such as 65QNED91T6A, which we took advantage of. When it comes to white balance, we were able to significantly correct it in SDR content. The picture mode in 4K HDR quality posed greater challenges, which, although still not perfect, looks better than before calibration. The errors on the Color Checker palette and the colour palette are much smaller than in factory settings. Regarding brightness characteristics, gamma for HD content is practically ideal, with a slight exception at the end of the graph. However, the biggest issues the television had were with brightness in 4K HDR content. Analyzing the EOTF characteristics in films, we noticed that the television manipulates brightness quite significantly, which we observed in earlier tests. Brightness is considerably boosted compared to the graph in the static test, and the television brightens certain scenes to the extent that some smaller elements lose detail. Unfortunately, this is caused by an average local dimming algorithm in this model. Nevertheless, calibration yields decent results, especially in terms of precise colour reproduction.

Thanks to the vast number of settings in the menu, we managed to bring the S85F almost to perfection. White balance in SDR content? Literally perfect – deviations do not exceed a value of "1". Thus, it can be confidently said that in materials with not very high dynamics, we have an image close to reference.

In HDR content, minor issues did arise, but they are of little significance in practice – most errors fall below the threshold of perception, which is a value of "3". We also managed to tame the S85F regarding brightness management – the EOTF curve, even in films, adheres to an almost perfect line. This is one of those cases where after calibration, you can comfortably forget about the settings and simply enjoy movies and series at the highest level.

When it comes to tonal transitions in lower quality materials, the TV offers the already-known feature from LG TVs - "Smooth Gradation." We can control it at three levels: low, medium, and high. We recommend using the medium option, as it effectively removes tonal transitions without causing noticeable issues with removing the structure of objects or other artefacts.

As for image scaling (upscaling), LG's Alpha processor handles this well. The image appears very plastic, with slight jaggedness in some elements, which does not significantly affect the quality. It looks really okay, and the overall effect is very satisfactory.

The tone transition smoothing feature in the S85F works really well – it can completely eliminate the problem of visible bands in very poor quality materials, even from YouTube. Unfortunately, even the lowest level of this option comes with compromises. Noise reduction is aggressive enough that it can smooth out film grain, which many of us consider an element of the cinematic atmosphere. At the "Standard" level, we did not notice that this feature removed anything significant from the image, so we can recommend this setting. On the other hand, the "High" level is a different story – it can smooth not only noise but also fine, desirable details such as the texture of objects.

When it comes to image scaling, the S85F performs very well. The material looks sharp, and the only minor imperfection is slightly visible contour jaggedness. And there’s the ongoing issue with Samsung televisions – overscan. This can cause some scenes to have their frames slightly trimmed, which is worth keeping in mind when watching very old content.

The television has a refresh rate of 120 Hz, which should satisfy most users in terms of motion smoothness. Additionally, QNED91T is equipped with the TruMotion feature, which allows for smoother image display in movies. As part of this feature, we can adjust the "De-Judder" and "De-Blur" sliders. The "De-Judder" slider is responsible for reducing jitter in movies, which is particularly useful when playing content with a lower frame rate, while "De-Blur" helps reduce blurriness in fast scenes, which is essential for sports or dynamic shots.

S85F is a hellishly fast television – and this is not just an empty catchphrase for effect. Thanks to the 120 Hz OLED panel, dynamic scenes, whether in games or while watching a live match, look exactly as they should – smoothly, sharply, and without the feeling that something is "escaping" from the frame. The lightning-fast pixel response time, typical of OLEDs, plays a crucial role here. Transitions between frames are practically instantaneous, and the image remains clear even during the fastest camera movements. A ball flying across half the field? A car racing in a chase scene? Everything here is clear and free of the characteristic "trail" found in LCDs.

This is exactly what we expect from a good OLED – zero compromises in motion fluidity. The S85F gives the feeling that regardless of the pace of the action, we can focus on what is happening on the screen, rather than on the imperfections of the image.

The LG 65QNED91T6A television is equipped with HDMI 2.1 ports with a full bandwidth of 48 Gb/s, providing full support for all standards needed for gaming on modern consoles. We can count on support for variable refresh rate (VRR) and auto low latency mode (ALLM). This ensures smooth gameplay without delays.

With support for all popular HDR standards in games, such as HGiG and Dolby Vision, we can fully harness the potential of the PS5 and XBOX One consoles. The television also easily handles lower resolutions than 4K, so even older consoles look good on it. The Game Bar makes it easy to access gaming-related settings, allowing us to quickly and intuitively adjust picture parameters and features for gamers. Additionally, the QNED91T offers NVIDIA GeForce Now functionality, enabling us to game in the cloud without needing a console. However, it should be noted that this solution is quite expensive and somewhat falls short compared to Xbox Game Pass, which is available only on Samsung TVs.

QNED91T LG is a great choice for less experienced and more advanced gamers looking for a versatile television for gaming.

The S85F has practically everything it needs to become the dream screen for gaming. Four fully-fledged HDMI 2.1 ports with a bandwidth of 48 Gb/s, support for VRR, ALLM, a super-detailed Game Bar that clearly shows all parameters – and on top of that, a gem in the form of Game Motion Plus. This is a motion interpolator that makes animation in games more enjoyable, with only a slight increase in input lag. This is a rare combination, and Samsung deserves a big plus for it.

Now comes the moment where we have to complain a bit. The lack of Dolby Vision in Samsung TVs is already standard, so there's no point in hoping (unless something changes in a few years) – but the disappearance of HGiG after the software update is something that’s hard to explain. HGiG (which stands for HDR Gaming Interest Group) is a mode that allows for precise reproduction of brightness in HDR games, according to the creators' intention. Without it, HDR calibration on the console becomes less precise, so we might end up with an image that's too dark in the shadows or overly bright.

Perhaps Samsung will fix this in the next update – and we have high hopes for that. Because if HGiG returns, the S85F will become almost the perfect TV for gamers.