LG QNED80A6A (IPS) vs TCL A400 PRO

When it comes to image dynamics and brightness, the QNED80A has its feet firmly on the ground. It is not a "light beast" – during our measurements, peak brightness oscillated around 350-400 nits. To put it plainly: these are values that will not allow HDR formats to fully spread their wings. So don’t expect the glare of the sun or car headlights in movies to blind you. However, this TV has a powerful ace up its sleeve that saves the overall view of the image – it is the colors. LG engineers have implemented an advanced filtration system here (technically likely based on a PFS phosphor, marketed as QNED/NanoCell), which does a fantastic job. Thanks to it, despite the average brightness, the screen can generate exceptionally saturated and pure colors. Our instruments showed coverage of the wide DCI-P3 cinema palette at the level of 93-94%. This result outclasses most standard LCD TVs. In practice, this means that when watching 4K HDR content, the image – while not particularly bright – is very plastic, vibrant, and pleases the eye with the depth of colors.

The TCL A400 Pro is a moderately bright TV. Its peak brightness reaches about 600 nits. That level already allows for a real HDR effect and in many movies it does produce a noticeably more attractive picture than SDR. However, it is not a level that overwhelms by brightness alone. The A400 Pro is not one of those TVs that "attack" the viewer with a powerful flash in every dramatic scene. The biggest limitation is visible with small bright elements on a dark background. Due to rather aggressive control of the dimming zones, the TV can significantly reduce their brightness — in extreme cases down to around 100 nits. That means small lights, sparks, stars, or single highlights can be much less visible than they should be. That said, this is not done without reason. The A400 Pro does this to keep blacks as deep as possible and to limit haloing around bright objects. It's a deliberate compromise: the TV more often chooses deeper blacks over maximally bright, point-like highlights. On one hand this is understandable, especially with a limited number of dimming zones, but on the other hand you should be aware that the HDR effect will not always be as strong as the peak brightness alone would suggest.

On the plus side, the colors are worth noting. The PFS LED filter used here, marketed by the manufacturer as QLED, produces suitably saturated colors. Our measurements showed about 94% coverage of the DCI-P3 gamut and about 74% of BT.2020, which is a solid result for this class.

Here, regardless of whether you encounter the VA or IPS version, the situation looks identical. LG engineers once again served us their vision of a "gaming look," which unfortunately has little to do with accuracy. After switching to console, the white balance automatically drifts into very cold areas. The image is dominated by the color blue, making it seem artificially sharpened, and the white is so aggressive that it is almost burned out. This creates an effect that we associate with bright retail modes – everything is supposed to shine and scream "I am digital." While some may like this, we must say it straight: this is not an accurate image. If you care about naturalness, we suggest checking the settings right away and changing the color temperature to a warmer one.

As standard, we carried out color measurements in the best-calibrated mode, Filmmaker Mode, the one that is supposed to be closest to the creators’ intent. The A400 Pro, of course, also offers other picture modes, but in practice they suffer from much larger color errors and alter the image character more strongly. We won’t go into those modes in detail in this part of the test. So how does the factory color reproduction perform? In short: really very well. In fact, looking at our measurement results, it’s excellent. Both the white balance and the luminance response were set surprisingly precisely. The errors were so small that during testing we genuinely rubbed our eyes in disbelief. Such good out-of-the-box settings don’t happen often, even in TVs operating in Filmmaker Mode. All the more reason to praise TCL, because the A400 Pro right out of the box can produce an image very close to how the source material should look. The results were so good that you could easily think someone had already paid extra attention to that unit and tried to calibrate it.

Our nitpicking really comes down to just one thing. In SDR content the image was slightly brighter than the reference for a dark room, because the factory gamma was set closer to 2.3 than to 2.4. It’s not a big error and most viewers probably won’t even notice it.

However, it should be noted that we’re talking about our specific review sample. With factory colors there can always be some variation between units, production batches, or screen sizes. So we don’t assume that every A400 Pro will look identical straight out of the box.

After professional calibration, the QNED80A in the IPS version has changed beyond recognition, especially in "regular" content (SDR). We managed to eliminate the greenish tint and calm down the overly bright gamma. In classic television or older games, color errors (DeltaE) fell below the threshold of perceptibility (value < 2). The image is now consistent, natural, and truly pleasing to the eye. The situation is somewhat more complicated in HDR mode. Although the colors are already in place, the television has trouble perfectly controlling the brightness (EOTF curve). Due to the limitations of edge lighting and the rather poor adjustment options provided by LG in this area, the television's software sometimes "does what it wants" just to mask the imperfections of black and contrast. However, this is not a cause for concern – despite these technical limitations, the image after calibration is a class better than what you saw out of the box.

Despite its excellent factory tuning, we couldn't resist checking how the TCL A400 Pro would respond to a professional calibration. Since the starting point was so good, we were even more curious whether we could squeeze even more out of this TV. And here we have to boast: we managed to bring our unit to absurdly low color errors. Results below 1 are something you don't see every day, even on very good TVs. Such results are more often associated with professional reference monitors than with a lifestyle TV for the living room. In terms of white balance and color reproduction, the A400 Pro after calibration simply performed outstandingly. The only thing we can pick at after a deeper analysis concerns the brightness behavior. The TV can manipulate luminance levels depending on the content being displayed, and quite often the image is a bit darker than it should be according to the standard. This most likely stems from the way the Mini-LED backlight and local dimming algorithms work in this model. However, that doesn't spoil the overall impression, because in terms of color precision alone the A400 Pro after calibration reached a level we really didn't expect.

It often happens that cheap 4K TVs mercilessly expose the flaws of low-resolution materials. Here, it's different. The QNED80A is great equipment for watching content that isn't perfect. The processor does a great job of upscaling the image, making even older recordings look quite decent on a 4K screen – they are consistent and free of digital noise. An interesting feature is the gradation reduction available in the settings. It is quite effective in combating so-called banding (color banding) in low-bitrate materials. Of course, one should approach it with some caution. Due to the lower computing power of the chip (compared to the premium series), enabling this option can sometimes result in unwanted artifacts or blurriness. Despite this risk, we encourage experimentation, as in many cases this feature can save a poor-quality viewing experience.

Digital video processing is unfortunately one of the weaker points of the TCL A400 Pro. That doesn't mean the TV performs badly, but it's hard to call it anything clearly above standard. The upscaling itself is adequate: edges are smoothed fairly well, the image doesn't look overly sharp or pixelated, and lower-quality content can be watched without major discomfort. At the same time the overall look is slightly soft and it lacks the precision that the best image processors in more expensive TVs can deliver.

Much worse, however, is its handling of tonal transitions caused by heavy compression. TCL equipped the A400 Pro with a "Gradual Smoothing" feature that in theory should reduce visible color banding and artifacts in lower-quality content. In practice its effectiveness is very limited. It does not improve tonal transitions in any noticeable way, and at higher settings it can also smooth out image details, giving the picture an artificial, slightly blurred character. For that reason we think it's best to leave this feature off. The A400 Pro handles basic image scaling decently, but if you often watch heavily compressed content with visible posterization, this model won't be one of the best choices.

In terms of motion reproduction, the QNED80A unfortunately has a tough time. The television is based on a 60Hz refresh rate panel, which in 2025 in the QNED series is quite a disappointment. If you are looking for perfect sharpness in dynamic soccer matches, you might feel a bit unsatisfied. A solution in this situation is the TruMotion system. It allows for artificially adding frames, which smooths out the image in movies and series. In the menu, you will find the De-Judder slider – we recommend setting it to a value of 2, 3, or 4. This is the "golden mean" that improves fluidity without turning the film into a soap opera.

The TCL A400 Pro is equipped with a 144 Hz panel, but in practice we're most interested in how it performs at 120 Hz. That's the refresh rate used by most consoles today, as well as many sports broadcasts and high-frame-rate content. In this range the TV performs quite well. Motion clarity is really good, especially after properly configuring the motion smoothing. The "Motion Clarity" feature improves smoothness. Its settings include two sliders that let you tailor the motion smoothing to your preferences — separately for lower- and higher-frame-rate material. That way you can achieve either a more cinematic look or a noticeably smoother picture. If you don't want to tweak settings manually, you can use presets such as low, medium, high, cinema, or nature.

In the gaming section, we won't sugarcoat it for you – the QNED80A is not e-sports equipment. The lack of support for 120Hz signal is a fact that must be accepted. However, LG engineers have done everything to squeeze the maximum potential out of this 60 Hz panel, providing gamers with a set of desired features. First and foremost, the television supports VRR (in the range of 48-60Hz) and ALLM. This means that the image is smooth, does not stutter, and the television automatically switches to low latency mode as soon as we pick up the controller. Accessing these options is incredibly simple thanks to the dedicated system overlay – Game Dashboard. It is also worth appreciating the support for the HGiG format. This is a nod to owners of modern consoles. Although the screen does not support gaming Dolby Vision, HGiG ensures that the television "understands" how to display games in HDR. This helps us avoid the issue of blown-out clouds, which is unfortunately a plague on cheaper LCD televisions.

When it comes to features for gamers, the TCL A400 Pro performs excellently. The TV has practically everything you can expect from a gaming TV today: 4K support at high refresh rates, VRR, ALLM, correct implementation of HDR formats in games, including Dolby Vision, and HGiG. Because of that it works well with both next-gen consoles and PCs. Another plus is the inclusion of a Game Bar, a special panel with the most important settings for gamers. From it you can quickly check basic signal information, refresh rate, and active features, and also adjust the look and behavior of some settings to your own preferences. This is a solution that may not change picture quality by itself, but it greatly improves the convenience of using the TV while gaming.

The only thing to complain about is the number of full HDMI 2.1 ports. The A400 Pro has only two such ports out of four, and one of them also functions as eARC. In practice this means that if someone wants to connect two next-gen consoles and a soundbar, they may hit some limitations. In that scenario you'll have to either swap devices or use extra equipment, for example an AV receiver or a soundbar with HDMI inputs. Despite this, it's hard not to rate the A400 Pro very highly as a gaming TV. The gaming feature set here is really powerful.