TCL C7L vs TCL X11L

TCL C7L is undoubtedly an extremely bright television. In synthetic tests on static images, it can achieve peak brightness levels of around 2800 nits. This is an absolutely phenomenal result, considering the price range it falls into. Unfortunately, the tests with real film scenes are not as spectacular as the measurements of white squares. The brightness in actual HDR shots drops to around 1200 nits in the C7L model. This is still a very good result, as the vast majority of contemporary films are mastered at such a value. However, when small, pinpoint elements appear on the screen, the brightness of those details drastically drops – even to about 400 nits – which diminishes the HDR effect somewhat. The television does this intentionally to maintain a better level of black and prevent a huge glare of light. This is somewhat explainable, but it also shows that Mini LED technology is not completely uncompromising in this regard. As for the HDR effect itself – alongside brightness, colors are obviously key here. And these, thanks to the use of new, "super" quantum dots, are simply outstanding and among the best on the market. The television can achieve around 90% coverage of the ultra-wide color gamut BT.2020 and 99% of the DCI-P3 gamut, easily matching the best RGB MINI-LED screens. Best of all, the C7L can maintain such high color saturation regardless of the scene being displayed, which is often problematic in competing RGB Mini-LED televisions.

Such a large number of zones translated not only into deep, inky blacks but also into the panel’s brightness. The X11L is an extremely bright TV. Peak brightness can easily exceed 4000 nits, and with the special "Boost" mode enabled, under specific conditions that brightness can even hover around the marketing figures of 9000–10,000 nits. This is undoubtedly one of the brightest, if not the brightest, screens on the market. But how do those numbers translate to real-world movie measurements? The results are very good, though of course far from the marketing promises. Our measured brightness in actual movie scenes hovered around 2000–3000 nits. That’s an outstanding result, considering that the vast majority of content is produced to those brightness levels, including the rarer material mastered to 4000 nits. But it also shows that the numbers the manufacturer brags about don’t always translate directly to the video content available at home. The only "quirk" (if you can call it that) is that when very small, bright elements appear on the screen, their brightness drops below 2000 nits. The dimming algorithm does this deliberately to preserve deep blacks and minimize halo. This is entirely understandable and the effect remains very strong, but it also demonstrates that even with such powerful hardware, Mini-LED technology has its limits and does not always work without compromise. In HDR, brightness isn’t the only thing that matters; color saturation and color accuracy do as well. On the X11L these are very good thanks to the new Super QLED quantum dots (SQD). The addition of a newly applied filter delivered excellent coverage of the P3 color gamut and the ultra-wide BT.2020. Although it doesn’t reach the advertised 100% of BT.2020, values around 89–90% can be called excellent. Colors are not far off those of RGB Mini-LED panels. We can even say they’re more stable because they use a less demanding algorithm than the one RGB screens often have to deal with.

When it comes to colors straight out of the box, what's new in TCL TVs, including the C7L model, is the addition of a picture mode called Filmmaker Mode. That's significant because until now that mode wasn't available from this manufacturer at all. In theory, as the name suggests, the image in this setting is meant to represent the filmmaker's full intent. From our tests we can confirm that it's without a doubt the best built-in mode on this TV if you care about faithful color reproduction right out of the box. However, we wouldn't say it's perfect. Like most devices on the market, this C7L also had some factory issues. The white balance in Filmmaker Mode tended toward a slightly greenish-yellow tint, caused mainly by an excess of the green channel and a noticeable lack of blue. For the average viewer this won't be a drastic flaw, but if you care about perfect whites, natural skin tones, and getting the full potential out of the structure of these new "super" quantum dots, the TV really begs for professional calibration.

When you enable the supposedly best Filmmaker Mode, you expect a one-to-one image of what the director saw. On the X11L it's pretty good, but the mode has obvious flaws that our measurements immediately exposed. Let's start with SDR. Both the white balance and the gamma are simply misaligned here. The whites have too much blue and red, giving a faint pink tint. That also hurt the gamma, which instead of holding the cinematic 2.4 runs closer to 2.2. What did that result in? The whole image ends up pushed and artificially brightened. The worst is saved for last: the HDR measurements. Apart from that slight white balance drift, the X11L fails on the brightness management curve called the EOTF. What we saw in the measurements instantly explains what we noticed earlier in the films. The image is unnaturally bright because the curve is massively overshot above the reference. The TV simply and ruthlessly lifts the dark parts of the image to create a "wow" effect, completely ignoring the director's intent.

After a professional calibration we were able to greatly improve the out-of-the-box Filmmaker Mode. After our adjustments, errors in the ColorChecker test and across the wide color gamut fell below the threshold of human perception, that is below a value of 3, which is a very good result. The TCL C7L definitely benefits from this treatment in terms of color accuracy, and that's hard to argue with. A bit worse, however, is the issue of brightness management in HDR content after calibration. As I described earlier, even though we set this model up correctly, when you play real movie scenes on the TV it can manage its brightness in a rather peculiar way. It often brightens certain elements on the screen contrary to the creator's intent, which can be clearly seen on EOTF charts measured in particular films. Despite this flaw, or rather a specific quirk of this TV, you can't take away one thing: after calibration the C7L was able to reproduce colors accurately.

After a professional calibration we were above all able to fully tame the SDR signal. The X11L responded perfectly to our adjustments. We were able to completely straighten the white balance, eliminate that pink tint, and set gamma to a stable 2.4. After that treatment the picture finally became consistent with the director’s intent, natural and free of artificial boosts. For HDR we also managed to make minor corrections, but the TV’s biggest flaw remained unchanged. I’m talking, of course, about how the X11L manages its brightness and how badly it overshoots the EOTF curve. Unfortunately, TCL provides virtually no tools to manipulate this parameter. Even during professional calibration the software offers no way to tame that curve, so the TV will always tend to brighten the image in HDR.

This point could, in a sense, be called the Achilles' heel of the C7L. Unfortunately, this TV uses an older MediaTek chipset, the Pentonic 700, which was never known for outstanding digital image processing. You can clearly see this in the operation of the gradual smoothing function, which is responsible for reducing jagged edges and removing digital noise. It simply performs very poorly; when set to low, its effectiveness is practically nonexistent. The only small plus is that the algorithm doesn't further degrade the image or forcefully blur details. Upscaling itself, meaning the scaling of lower-resolution content to 4K, performs a bit better. It's simply adequate and doesn't stand out compared with the competition. That said, there's no denying the C7L would gain a lot in this area if the manufacturer decided to use the newer Pentonic 800 processor, which is now appearing in an increasing number of competing models.

Like in the C8L model we tested earlier, TCL has delivered a substantial upgrade in its flagship X series in this area. It's all thanks to the MediaTek Pentonic 800 processor used in this model. Thanks to it, features that smooth tonal transitions or even upscale content to higher resolutions finally look the way they should. The biggest Achilles' heel of previous TCL models has finally been addressed. The processor excels at digital processing, and in this respect the TV no longer lags behind flagship models from Korea or even the most refined ones from Japan.

The TCL C7L uses a native 4K panel with a 144 Hz refresh rate, which, at lower resolutions when using a PC, can even reach up to 288 Hz. Those are obviously very high numbers and look impressive on paper, but in everyday use it's worth remembering that almost all dynamic content you play on this TV will still run at around a maximum of 120 Hz. To tame that motion, the TV's menu includes a motion smoothing system called "Motion Clarity." It offers several predefined modes, including a user mode that we strongly recommend setting manually using our tried-and-true guides on our YouTube channel. There are two key sliders available there. The first, "Blur Reduction," reduces smearing and improves sharpness in dynamic 60-fps material, such as sports broadcasts. The second slider, "Flicker Reduction," lets you add artificial frames to movies and TV series shot at cinematic 24 or 30 fps. This, of course, allows you to completely eliminate the annoying image judder during camera motion.

In terms of specs, the X11L can impress: it supports refresh rates up to 144 Hz at 4K, and at Full HD it can be pushed to 288 Hz. But from a real-world perspective, we were most interested in how the screen handles 120 Hz. After all, modern hardware is limited to that rate, led by current-generation consoles. How does it perform in practice? Although it uses a VA panel, the screen doesn't exhibit heavy ghosting. With very fast-moving objects you can notice a slight smear, but it's subtle enough that it doesn't stand out when gaming or watching sports. The motion smoothing feature called "Motion Clarity" is also very helpful; it lets you adjust motion smoothness to your liking. Recommended settings are shown in the photo.

When it comes to gaming, the TCL C7L is simply an outstanding TV for gamers. Thanks to two full-bandwidth HDMI 2.1 ports at 48 Gbps, you get access to all the key features required by console owners and users of powerful PCs. It has a well-implemented ALLM mode with very low input lag and VRR frame-sync that works in an impressive range from 48 to 288 Hz. Importantly, unlike some competitors, TCL implemented the console HDR10 HGIG profile correctly and added support for Dolby Vision in games. Rounding out the package is a very well-designed player panel, the Game Bar, which even lets you edit its appearance and change the theme to perfectly match your console’s style. The only thing you can — and should — criticize is that the TV offers only two full HDMI 2.1 ports, while the other two are older HDMI 2.0. That creates a fairly significant logistical problem. Why? Because one of those fast ports also supports eARC (enhanced Audio Return Channel). In practice, that means if you connect a soundbar or a home theater system, you’ll only have one free HDMI 2.1 port left. If you have two consoles at home, or a console and a powerful PC, you’ll unfortunately have to give something up or constantly juggle cables at the back while trying to maintain convenient control of your audio system.

For gamers the X11L is simply a superb screen. TCL has already gotten us used to the fact that its products deliver practically every feature available on the market, and it's exactly the same with the flagship from the X series. Thanks to the new processor, the X11L offers four HDMI 2.1 ports with the full 48 Gbps bandwidth. Naturally, the 2.1 standard brings a set of extremely useful options, such as Auto Low Latency Mode (ALLM) and VRR frame synchronization, working across the full refresh range up to 288 Hz. All of these features can be conveniently controlled from a dedicated Game Bar. Interestingly, its appearance can be customized to your taste, with three ready-made themes referencing Nintendo, PlayStation, and Xbox consoles. And speaking of Xbox: Dolby Vision Gaming also works on the X11L without any problems.

When gaming in the standard HDR10 format, however, you should be aware of the specific tuning of the brightness curve, which can cause problems during initial setup. Although the TV supports HGiG, configuring everything through the PlayStation or Xbox system menus can be tricky. The screen's algorithms tend to artificially brighten the test checkerboard pattern, making it really hard to hit the correct white clipping point by eye. For HDR10 content to look right, we recommend manually setting the brightness in the console menu to around 2500–3000 nits.