LG QNED91T6A vs Samsung Neo QLED QN70F / QN74F / QN77F

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 QN70F is a television that can pleasantly surprise when it comes to brightness. In ideal testing conditions, it reaches up to 800 nits, which – for this price range – is a really solid figure. Of course, this result comes from measurement charts, so we decided to check how it performs in practice, with real films. Here, the television somewhat tempers its capabilities. In most tested scenes – for example, in "The Meg" – the actual HDR brightness hovered around 500 nits. This is still a decent result, allowing for enjoyment of HDR effects, although it is far from perfect. On the other hand, we have a QLED screen with a layer of quantum dots, which means very good colour reproduction capabilities. The colours are vibrant and saturated. The QN70F covers about 94% of the DCI-P3 colour space, and in the wider BT.2020 palette, it exceeds 75%, so in this respect, there is nothing to be ashamed of.

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.

We tested the QN70F in its best default picture mode, which is Filmmaker Mode. I must admit that in this particular test unit, the factory settings performed quite well. The image was calm, natural, and despite minor deviations – pleasant to watch. The biggest flaw was a slight dominance of red in the white balance, which caused a slight pinkish hue across the entire scene. However, this was not a glaring defect – rather subtle and only noticeable when directly compared to a properly calibrated screen. A somewhat larger issue arose in the brightness characteristic. The television tends to underestimate the brightness of parts of the image that should be displayed more brightly. As a result, some details can appear slightly muted – not so much lost completely, but not resonating as clearly as they should. Nonetheless, as far as televisions in this category and in these settings are concerned – we consider the result a good starting point for further calibration.

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 QN70F shows that it can offer a truly high level of colour reproduction. The white balance was nearly perfectly aligned, and the values in the Color Checker test dropped below level 3 – meaning below the threshold at which the average eye can perceive differences. The image looks natural, and the colours are faithfully rendered, without excessive saturation or the coolness known from factory settings. It must be admitted that Samsung provides very extensive calibration options – not only for enthusiasts but also for professionals. The QN70F takes advantage of this potential and, after proper adjustment, can come close to significantly more expensive models in terms of colour accuracy. The only thing that can still be nitpicked is the brightness characteristic. There is still a tendency to lighten the smallest areas of the image – particularly those that should remain darker. However, this is a design feature of this model, not a calibration error. Despite this, the final effect definitely deserves recognition.

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.

Samsung QN70F offers a distortion reduction feature that enhances the smoothness of tonal transitions. In "Standard" mode, it works quite well – it smooths out problematic transitions without significantly interfering with the structure of the image. Film grain is somewhat reduced, but details such as texture and skin structure remain visible. The "High" mode is much more aggressive. The smoothing is stronger, but it comes at the cost of a noticeable loss of detail. Therefore, in practice, we recommend sticking with the "Standard" setting or completely turning this function off. The improvement in gradation may be less spectacular, but the image retains more naturalness.

When it comes to scaling low-quality content, the QN70F performs very well. Tests with lower resolution images were really very good. Despite slight edge ringing, everything looks clean and clear, even if the original content was very poor. It’s just a pity that the television has an issue with overscan, which cannot be completely turned off. As a result, images with very low resolution may be slightly cropped, which is mainly noticeable on subtitles or interfaces.

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 QN70F is a television with a refresh rate of 144 Hz, which in itself places it among the top when it comes to image fluidity. Whether we are watching dynamic sports broadcasts or playing on a console – the picture looks very good. There is no sense of stuttering, choppiness, or the typical "tearing" associated with weaker models during fast motion. Samsung also allows you to adjust the fluidity to your own preferences. In the picture clarity settings, we find options such as blur reduction and judder reduction – each of which we can adjust independently. This is especially useful when watching content with a lower frame rate and wanting to give it a smoother, more theatrical character – or conversely, to maintain the natural cinematic "feel" of 24 frames.

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 Samsung QN70F is truly a solid choice for gamers. Here, we find as many as four HDMI 2.1 ports with full bandwidth of 48 Gbps, meaning full support for gaming in 4K at a refresh rate of 144 Hz. Additionally, it includes all the essential features we expect today: automatic game mode (ALLM), variable refresh rate (VRR), and a very well-designed, intuitive Game Bar showing information about mode, resolution, and frame rate.

Also noteworthy is the Game Motion Plus feature, which allows artificial frames to be added to games running at 60 fps or less. This works surprisingly well and in many titles – particularly those where consoles struggle to maintain a stable framerate – it improves the fluidity of gameplay without significant delay.

Unfortunately, there are some drawbacks. The lack of support for Dolby Vision mode is not surprising – it’s a standard with Samsung. However, the absence of the HGiG feature is much more disappointing. Worse still, it was removed with a software update, which may leave users who previously relied on it quite puzzled. Without HGiG, it is impossible to manually set the maximum HDR brightness from the console, resulting in some games appearing slightly washed out – especially if the television misinterprets the tonal range. Why Samsung, a brand that has set standards for gaming features for years, decided to take such a step is hard to say. At the time of writing this review, the tested television was running on software version 1110 – and frankly, if you care about full support for gamers, it’s better to hold off on updates for the time being.