LG UR781 vs Samsung U8000F (IPS)

In HDR mode, LG UR781 unfortunately does not impress with its brightness. In tests on five screens, the television achieved only around 200 nits, which is quite a low value for HDR standards. This brightness is similar to levels typical for SDR, causing HDR effects to be insufficiently pronounced, and the image may appear less impressive, especially in dynamic, bright scenes. In HDR mode, it has certain limitations in colour reproduction. This means that colours may not be as intense and rich as in televisions that manage better with a wide colour gamut. In practice, this can make the image less vibrant and dynamic, and HDR effects will not be as spectacular as one might expect. Additionally, UR781 LG has some issues with accurately reproducing colours in HDR mode, resulting in content that may look less vivid.

Better does not mean good – and that is exactly how to summarise the capabilities of U8092F when it comes to displaying bright movie scenes in HDR mode. The brightness of the panel is just under 250 nits, which is definitely too little to enjoy any light effects. An interesting situation was observed during the measurement of the fourth scene from the film Sicario 2 – the television clearly dimmed the entire screen in an attempt to achieve better black levels (which remain weak anyway). One might even suggest that the device is using some form of 'global dimming', but unfortunately – the results are still very poor. To make matters worse, the television does not support a wide colour gamut – the coverage of the DCI-P3 space is around 80%, so one cannot expect truly vibrant colours. The HDR image here looks more like a slightly brightened SDR, and it is this form that we would suggest sticking to when it comes to this television.

The colour reproduction in LG UR781 in Filmmaker Mode, which although is the best mode available from the factory settings, is not without its flaws. Firstly, the issue is white balance, where the graph shows dips in blue colour levels. This phenomenon results in a shift of hues towards yellow tones, causing the image to appear warmer than it should. Such deviation means that the colours on the screen are not naturally reproduced, which can be particularly noticeable in scenes with a white or neutral background. This can be confirmed by the Test Color Checker, which showed that some colours "shift" into other shades, meaning that the LG UR781 television does not display colours in accordance with reality. This distortion can affect the visual experience, making movie scenes seem less realistic, and details might be displayed in inappropriate colours, negatively impacting the overall image quality.

In terms of contrast, the analysis of the gamma graph revealed drops to a level of 2.0, whereas the optimal value should be 2.4. This means that the television may display darker parts of the image brighter in certain scenes, which reduces their depth and dynamics. Additionally, on the EOTF curve, which is responsible for brightness reproduction, an unnatural spike was observed at the beginning. This phenomenon can result in excessive brightness boost in the brightest parts of the image, leading to loss of detail in very bright scenes.

The Samsung U8000F has been tested in the best possible picture mode built into the television, namely Filmmaker Mode. This mode should – at least in theory – offer a cinematic, reference picture without unnecessary enhancements. In the case of SDR content (mainly HD/SD), the television, out of the box, showed itself surprisingly well. Errors in white balance hovered around a value of 3, which is roughly on the edge of perceptibility. The only complaint could be about brightness management – the gamma graph showed a slight tendency to lighten or darken certain sections, but even so, the overall performance is quite good for this price segment.

Unfortunately, it looks much worse in HDR mode. Although the white balance was not terrible, the television had significant colour errors – particularly evident in the Color Checker graph, where almost every sample hit outside the target point. The picture in HDR simply looks unnatural, and the colours can be shifted, dull, or too cool. This largely stems from the fact that the U8000F does not support a wide colour gamut (DCI-P3). The television is physically unable to display correct colours in the HDR standard – and unfortunately, this is felt in every more demanding material.

After calibration, the colour representation in SDR content is quite good. The white balance has been effectively improved, resulting in natural, balanced hues across various scenes. The gamma has also been adjusted, providing more precise detail in the shadows and highlights of the image. As a result, the LG UR781 television performs well in everyday use, offering solid colour quality and clear, well-balanced images in SDR mode.

However, the situation is worse for HDR content. The LG UR781 television does not support a wide colour gamut, which limits the depth and richness of colours that HDR can offer. The EOTF curve deviates from the ideal, resulting in excessive highlighting of details in the bright parts of the image. Unfortunately, this results in significant colour reproduction errors, as confirmed by tests on the Colour Checker. Additionally, the low brightness level of the panel further negatively impacts the quality of HDR images, causing dynamic range effects to be not fully realised, and colours to appear washed out.

Despite some shortcomings in HDR mode, the television has improved significantly after calibration, especially in SDR content. The improvement in white balance and gamma has greatly enhanced image quality, providing a more natural and cohesive colour representation. Compared to its state before calibration, the difference is clear, and the LG UR781 television now offers better performance in everyday use, particularly in the standard dynamic range.

Although the U8000F already offered a fairly well-balanced image in SDR straight out of the box, we were able to refine it a bit further. We managed to eliminate a slight purple tint and adjust the gamma to a more sensible level. However, the television still has a tendency to overexpose the smallest and brightest parts of the image – the gamma chart shows a characteristic 'dip' that is difficult to completely straighten out.

Unfortunately, the situation is worse in HDR. It's hard to speak of any significant improvement here – the television is simply not designed for HDR content. We tried to correct the image in the advanced settings, but despite our efforts, the colour errors remained substantial – a delta E above 7 indicates very noticeable deviations. It's a bit disappointing, but that's the nature of budget construction. In SDR, the U8000F performs reasonably well, whereas HDR is just not its league.

Now let’s address the function of smoothing tonal transitions and its impact on overall image quality. As illustrated in the photo on the left, this function performs exceptionally mediocrely; we selected the "low" level, which does not improve quality but also does not blur the film grain. There is the option to increase the power of this function, which would soften the gradation; however, one must reckon with the fact that the image will be too softened in some scenes.

On the other hand, regarding image scaling, the television does not perform exceptionally, which can be particularly noticeable with lower resolution content. The LG UR781 television applies a slight, artificial sharpness boost, which makes the image appear sharper, but this primarily results from the overlay of artificial contours. For some users, this can be an advantage, as they prefer more vivid, accentuated details. However, this is a subjective matter—such an effect may not appeal to everyone, especially if they desire a more natural look to the image.

When it comes to how the Samsung U8000F handles lower quality materials, we must admit that Samsung has made progress compared to its predecessor from last year – namely the DU7192 model, which theoretically occupies the same spot in the range.

This year's model has been equipped with a feature that enhances the fluidity of tonal transitions, which has been implemented much better than last year. Yes, the television still uses fairly strong algorithms that can distort details or remove film grain, but despite that – it can be confidently said that it works effectively.

However, not everything has gone perfectly. The U8000F has noticeable issues with slight image stuttering when watching very old content in very low resolution. If someone plans to play their old VHS tape, they must reckon with the fact that the image may appear slightly "choppy".

The LG UR781 television offers quite decent smoothness for films, thanks to the "True Motion" option, which allows users to adjust the level of motion smoothing on a scale from 0 to 10. The user can choose whether they want to preserve a more traditional, cinematic effect with subtle judder (lower settings) or prefer a smoother, theatrical image that, although slightly deviating from the cinematic standard, may appeal to many.

In dynamic sports content and games, the LG UR781 television performs worse. The television has a 60Hz panel, which limits its interpolation capabilities to these values; therefore, it can improve fluidity in films but cannot reduce motion blur. Additionally, the lack of support for 120 Hz and BFI (Black Frame Insertion) technology means that quick movements of objects become blurred, and the response time of the panel is too long, negatively affecting clarity in fast scenes. As a result, the television may not meet the expectations of gamers and sports fans who are looking for a smooth, clear image without motion blur.

The Samsung U8000F is equipped with a 60 Hz panel, so it's clear from the outset that we shouldn't expect miracles. It's simply the standard in this class – sufficient for everyday viewing but without any fireworks.

The television offers a single motion smoothing slider – a function called “Motion Blur Reduction”, which allows us to adjust the smoothness of the image in films. Higher settings provide a more “theatrical” and smoothed effect, while lower settings maintain the original character of the film with a slight 24p effect. An interesting feature is “LED Clear Motion”, which is a BFI mode – that inserts black frames between frames of the image to improve motion clarity. However, in practice, the screen flickers quite a bit when this feature is activated, and it should be regarded more as an experiment than something that genuinely enhances the comfort of gaming.

While gaming on the console, the television LG UR781 offers several important features that can affect the gaming experience, but it also has some limitations. A positive aspect is the presence of ALLM (Auto Low Latency Mode), which automatically optimises picture settings by switching the television LG UR781 into low latency mode, which is beneficial for gamers. The television also supports proper implementation of HGiG, meaning HDR games look as intended by the developers.

Unfortunately, it lacks support for Variable Refresh Rate (VRR), which may result in poorer fluidity of gameplay, particularly in more dynamic games. It also does not support Dolby Vision mode for games, which limits the HDR picture quality in games using this format. The television has a panel with a frequency of 60hz, which means it does not support higher frequencies at other resolutions, such as 1080p@120Hz, 1440p@120Hz, or 4K@120Hz, which is a significant drawback for gamers expecting smoother gameplay at higher resolutions. It also lacks support for G-Sync technology, which limits image synchronisation in games.

However, a positive aspect is the presence of the Game Bar feature, which allows quick access to settings for gamers and makes it easier to adjust picture parameters during gameplay.

The Samsung U8000F offers a basic set of features for gamers, which may still prove sufficient for less demanding users. It includes an automatic game mode – upon launching a game on the console, the television automatically switches to low latency mode, significantly improving response times. We also find a VRR feature, meaning variable refresh rate, which operates within a range of 48 to 60 Hz. This means that both Xbox and PS5 will not produce the effect of screen tearing – provided, of course, we stay within this range.

Unfortunately, that is about it when it comes to advantages. Add-ons like Game Bar or higher refresh rates are reserved for higher models of Samsung's 2025 line. In theory, the television also supports the HGiG function, which should adjust HDR images to the intentions of game developers. Unfortunately – despite this feature appearing in brochures and retail materials – its configuration on the Xbox console has proven to be... impossible in practice.