LG QNED91T6A vs Samsung M80H

As befits a MiniLED television, LG QNED91T easily surpasses the magical barrier of 1000 nits on the luminance chart. In scenes where light played a key role, the effect was truly decent. For instance, 1000 nits in the first scene of "Life of Pi" is an impressive value, and the 600 nits achieved in the third and fifth scenes allowed one to feel the true magic of HDR. However, problems arise with very small light elements on the screen, such as the moon, street lamps, or lights. A value around 100 nits - to put it bluntly - is disappointing, as these elements are dark enough to be barely visible. The television deserves praise for covering 96% of the DCI-P3 colour gamut and 75% of BT.2020. LG QNED91T leaves us with very mixed feelings, mainly due to the very aggressive dimming algorithms, which, while effectively eliminating the halo effect, negatively impact the brightness of smaller elements.

The M80H is not among the brightest TVs. Its peak brightness is around 350 nits and we saw similar results in most of our test scenes. That is not enough to achieve truly striking HDR; bright highlights lack the necessary punch and the overall image is a bit too dark. In practice HDR on the M80H resembles a well-presented SDR image more than noticeably more dynamic material with a wide brightness range. The image can still look acceptable, but it is hard to speak of strong specular highlights, clearly glowing light sources or an effect that immediately distinguishes HDR from ordinary content.

Colours

One of the M80H's stronger points is its colours. The TV uses a filter based on PFS backlighting, which allows it to display a much wider colour gamut than a standard LCD screen without filters. Our measurements confirm this – the M80H covers around 96% of the DCI-P3 gamut and 72% of BT.2020. Those are really good figures, which allow colours to be deeply saturated. Samsung's approach here is interesting. The M80H is not part of the QLED family, even though in terms of colour it is practically indistinguishable from models carrying that badge. From an image-quality point of view it doesn't really matter though — the colours are simply good.

All our tests are conducted in the best picture mode on each television. In this case, as usual, it is the Filmmaker mode. The name of the mode suggests ideal colour reproduction; however, there were noticeable deviations from the correct image here. Our unit, in terms of white balance, displayed quite a strong dip in blue hues - both in SDR and 4K HDR content - which resulted in a distinct yellowing of the image, visible in comparison scenes from the film with Tom Cruise. As we mentioned earlier, QNED91T has certain tendencies to brighten the screen. This is confirmed by gamma, which is quite significantly below the reference value of 2.4. Meanwhile, the EOTF curve, responsible for brightness in 4K content, showed some issues with the television's dimming in the darkest areas, which we could observe in the paragraph describing the quality of the HDR effect. Although the Filmmaker mode is quite a good "out-of-the-box" mode, it too requires some adjustments.

Filmmaker Mode is set fairly well out of the box, although it falls short of perfection. In SDR material the most noticeable issue is an excess of red in the white balance, which makes the image appear a little warmer than it should. HDR content has a similar character. As for the brightness response, in SDR the gamma stays close to the target value for most of the range. Small deviations are mainly visible in darker areas, which in places are a bit too crushed. In HDR the darkest details are slightly lifted, while from around 65% brightness the image begins to be slightly darkened. This is largely due to the way the TV controls its brightness. Overall, Filmmaker Mode looks pretty good straight out of the box, but the picture can still be improved.

LG offers advanced calibration tools in its televisions such as 65QNED91T6A, which we utilised. 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 significantly better than before calibration. Errors on the Color Checker palette and colour gamut are much smaller than in the factory settings. Regarding brightness characteristics, gamma for HD content is practically ideal, with a slight exception at the end of the graph. However, the television had the most trouble with brightness in 4K HDR content. Analyzing the EOTF characteristics in films, we observed that the television manipulates brightness quite heavily, which we could see in previous tests. Brightness is significantly boosted compared to the graph in the static test, and the television lights up certain scenes to the point that some smaller elements lose detail. This is unfortunately caused by the average backlight zone management algorithm in this model. Nevertheless, calibration yields quite good results, especially when it comes to the precise reproduction of colours.

After calibration, the M80H fares very well, especially with the most ordinary SDR content. Regular broadcast TV, YouTube and films watched without HDR can look very good on it. After correcting the white balance the errors are small, although sometimes we can still see that the TV tends to overdo the most saturated reds. In HDR it is also possible to improve the picture and correct its main faults, but it is not at the level of pricier models. Samsung quite heavily restricts colour adjustment in HDR, so in many areas we have to accept what the TV offers out of the box. Calibration lets us improve some parameters, but we are no longer able to change the overall character of the M80H's image.

When it comes to tonal transitions in lower quality materials, the television offers a well-known feature from LG televisions - "Smooth Gradation". We can control it in three levels: low, medium, and high. We recommend using the medium option, as it does a good job of removing tonal transitions without causing noticeable problems with the removal of object structure or other artefacts.

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

Although the M80H is positioned fairly low in Samsung's range, the manufacturer equipped it with one of its stronger processors, the NQ4 AI Gen2. The same chip can be found, for example, in Neo QLED TVs and the lower-tier S85H OLED. That is good news, because when it comes to improving weaker sources the processor performs really well. Upscaling is the strongest point. Low-resolution content is displayed correctly and edges do not look overly jagged. Of course the TV will not create details that are not present in the source, but regular broadcast TV and older recordings look decent on it. One drawback is the overscan effect, that is edge cropping, which cannot be completely turned off. The tonal transition smoothing function, the so-called noise reduction, also works well. The processor can effectively reduce visible traces of heavy compression, but it does not do this without side effects. At higher settings it may over-smooth the image, remove some fine detail and even eliminate film grain. For that reason we recommend using this function mainly for content that really suffers from strong compression and posterisation.

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 films. Within this feature, we can adjust the "De-Judder" and "De-Blur" sliders. The "De-Judder" slider is responsible for reducing judder in films, which is particularly useful when playing content with a lower frame rate, while "De-Blur" helps to reduce blur in fast scenes, which is important for sports or dynamic shots.

The M80H performs very well for watching sport and for gaming. The TV is fitted with a panel offering a refresh rate of up to 144 Hz at 4K, and when the resolution is lowered to Full HD it can even support 240 Hz. PC gamers will benefit most from the latter.

The panel also handles content displayed at 120 Hz well, which is particularly important for console gaming. The high refresh rate is also useful when watching sport, and motion blur is relatively limited. That matters because VA panels are not known for top results in this area. With the M80H, fast-moving objects do not show pronounced smearing.

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

Thanks to support for all popular HDR standards in games, such as HGiG and Dolby Vision, we can fully utilise the potential of the PS5 and XBOX One consoles. The television also handles lower resolutions than 4K without any issues, 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 the NVIDIA GeForce Now feature, which allows us to play in the cloud without needing a console. However, it should be noted that this solution is quite costly and somewhat falls short of the Xbox Game Pass, which is available only on Samsung televisions.

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

The M80H could be a very good choice for gamers on a slightly smaller budget. In terms of features it offers essentially the same as far more expensive Samsung TVs. All three HDMI ports support the 2.1 standard, so even if one is taken by a soundbar connected via eARC there is still room for a PC and consoles. There is also VRR that runs up to 144 Hz at 4K and up to 240 Hz at Full HD. Samsung has also correctly implemented HGiG, so after performing HDR calibration on a console games are properly matched to the screen’s capabilities. This won't make the M80H any brighter, but at least it won't unnecessarily crush the brightest parts of the image. There's also a Game Bar for quick access to key settings and a Gaming Hub that lets you play in the cloud without a console. The M80H also offers Game Motion Plus, which creates additional frames and improves the smoothness of games running at 30 or 60 fps. Input lag then rises to around 59 ms, but is still roughly three times lower than with ordinary motion smoothing on TVs from other manufacturers. We wouldn't really recommend it for online gaming, but in more relaxed titles it can perform very well.