TCL C8L / QM8L vs SONY Bravia 9 II XR95M2

In terms of HDR, the TCL C8L turns out to be a hellishly bright television – and I mean literally. On a synthetic chart of 5%, our measuring equipment indicated a result exceeding 4500 nits. This is a result that is downright cosmic, considering that reference director monitors, which we often refer to in our materials, typically operate around 4000 nits. Does this mean that the C8L breaks barriers and climbs to the technological peak of Mini-LED? Not exactly. Dry synthetic tests are one thing, and real movie images are another. In real, varied scenes, the C8L achieves a peak of around 1600 nits. This is still a very good result, ensuring a very high level of HDR dynamics, but also clearly lower than what the manufacturer boasts in the specifications. The trouble starts with very small flashes of light – then brightness can drastically drop to around 600 nits. The algorithm tries at all costs to maintain deep black and minimize halo effect, but it does so at the expense of HDR impact. This is perfect evidence that laboratory charts rarely correspond to what we ultimately see on the screen.

Huge applause is due for color reproduction, all thanks to the new generation of SQD (Super Quantum Dot) quantum dots. The coverage of the DCI-P3 palette reaches 97%, but the true jaw-dropper is the measurement of the extremely demanding BT.2020 space. The C8L achieves as much as 90% in it, placing it alongside today's top screens that boast RGB backlighting. Importantly, unlike some screens with Micro/Mini RGB backlighting, this effect is stable regardless of the scene displayed. Of course, one must remember that content mastered for such a wide gamut in films or series is still a rarity. However, the mere fact that the panel has such a "color reserve" deserves immense admiration.

The real showcase of the new backlight architecture and Sony’s processor is the reproduction of HDR content. At the official launch engineers at Sony said (not officially 😉) that the Bravia 9 II’s brightness would be almost identical to the capabilities of their professional director’s monitor BVM-HX3110, which is priced at astronomical sums. Our lab tests confirmed these were not empty promises. During synthetic measurements on the L20 test pattern the TV easily exceeded the 4000 nits peak brightness barrier. More importantly, these remarkable results translate directly to real movie scenes. In most of the demanding shots we tested the screen easily maintained brightness around 2500–3000 nits. Regardless of the scene, whether the light was small and pinpoint or flooded nearly the entire screen, the HDR effect was incredibly intense.

Colors

Color is another key pillar of RGB Mini LED technology (True RGB as implemented by Sony). Specifically for testing these kinds of screens we added a permanent new testing section to see how TVs handle colors in real-world conditions. Traditional synthetic test patterns are no longer enough to confirm real color-gamut coverage. From now on we also measure color saturation directly in selected movie scenes by overlaying measurement points. So how do the colors perform?

In synthetic tests the Bravia 9 II posts excellent results. For the popular DCI-P3 color space for HDR the color-gamut coverage was almost 98%, while for the very wide, demanding BT.2020 space the instrument indicated nearly 90%. However, in real, varied scenes these values drop by a few percent. This is directly due to the nature of zone-based RGB backlighting. When differently colored elements or bright white highlights appear side by side, light from the zones starts to mix slightly, creating a white backlight. This of course affects color saturation, slightly reducing it. This shows that despite Sony’s brilliant RGB LED control algorithm, the number of zones is still too small to eliminate this effect entirely.

Is this a reason to complain? Of course not. The Bravia 9 II’s color coverage ultimately matches that of a very good QLED TV, and it’s important to remember: the vast majority of HDR movies and series are distributed in the DCI-P3 gamut. In that standard Sony easily maintains very high color saturation, regardless of the scene.

We tested the TCL C8L in the best factory picture mode available in this TV’s menu for image fidelity. That, of course, is Filmmaker Mode, which appeared in this brand’s software relatively recently (a year ago in the "K" series). Thanks to it, an average user can get a pretty good color reproduction straight out of the box, although it is certainly not a perfectly tuned mode. Looking at the factory white balance of our unit, both in SDR and HDR material, the red component was clearly lacking, which made the image noticeably cooler and caused a slight shift toward bluish-green tints. The issue of brightness management is also ambiguous, as we mentioned earlier. While for SDR content the gamma linearity is actually correct and holds steadily at the reference value of 2.4, in HDR things look much worse. Tracking the EOTF curve clearly shows the TV has a significantly boosted brightness across the range, which can make the final image overly bright and inconsistent with the creators’ intent, and that in a mode that by definition should avoid that. Of course, like every sample in our lab, this one also underwent professional calibration, and its results are shown below.

Contrary to appearances and high expectations, the Bravia 9 II we tested showed some issues with its factory tuning straight out of the box. Looking at the white balance charts, you can see it is not perfect. In SDR content the red component was primarily lacking, causing the picture to shift toward cooler, bluish tones. In HDR the white balance in this respect looked much better. So where do the visible errors in image reproduction come from? They result from unexpected tuning of the gamma and the EOTF curve. In both cases the Bravia 9 II straight from the factory showed a clear deviation from reference standards.

In SDR content the gamma was definitely too high; at its most extreme it hovered very close to 2.8 instead of the reference 2.4. In practice this meant the image was artificially darkened and appeared washed-out, with details in dark areas (shadows) completely disappearing. The opposite occurred with HDR material, where brightness reproduction is handled by the EOTF curve. That curve was pushed too far above the correct value, resulting in the image being artificially brightened across most luminance ranges. As with every TV we test, we subjected this unit to professional calibration. You can see the results and how we managed to correct these factory errors below.

As you can see, the results of a professional calibration of the TCL C8L are really promising, thanks to the extensive adjustment tools the manufacturer put at our disposal in the menu. Above all, we were able to completely correct the white balance — we eliminated the red deficiency, so the image finally stopped drifting toward unwanted cool tones. After that adjustment, errors in the ColorChecker test fell to near-reference levels, regularly landing below a Delta E of 2, which is below the threshold of human perception.

If the test patterns look this perfect, you might ask: why then the lower final score in this category? The answer lies in the brightness management discussed earlier. Although the menu includes sliders that let you precisely straighten the EOTF curve on synthetic signals, when confronted with actual movie material (I recommend enabling the EOTF filter when watching movies), you can see that in most scenarios the TV still reacts to HDR metadata its own way. As a result, the picture can be slightly over-brightened and not faithful to the creators' intent, and it was precisely this lack of consistency with real films that cost the C8L a few points.

Fortunately, with professional calibration, most of the Bravia 9 II's factory missteps can be effectively eliminated. We were able to precisely correct, above all, the white balance and the gamma curve and EOTF. After these adjustments, in everyday use and during movie sessions the TV looks much better. The image gained proper depth, the cool tint in the whites disappeared, and shadow details that had previously been lost due to too-high gamma finally became clearly visible. Although we ultimately rate color accuracy as very good, as specialists we must point out one fairly serious design flaw in this model. The Bravia 9 II could look even better if not for the complete lack of an advanced color management system in the TV's menu.

While basic white balance correction can be performed here without issue, the settings lack options for adjusting specific colors. We tried to tackle this in every possible way: both the traditional method using the remote and via dedicated calibration software for Bravia TVs. Unfortunately, that function has been completely locked. We suspect this may stem from the specifics of the new RGB architecture, which imposes its own limitations. It's a real shame, because without it you can't refine color reproduction to perfection. The inaccurate red still stands out, for example. One can only hope Sony will fix this shortcoming over time with an update.

This year the C8 series and higher models received probably the biggest and most anticipated upgrade in TCL’s history, and it specifically concerns digital image processing. The C8L is the lowest-end model in the manufacturer's lineup to be equipped with the latest flagship chip, the MediaTek Pentonic 800 (listed in the menu as MT9655). Thanks to its processing power, the feature called "Gradual Smoothing" finally works as it should. The algorithm effectively eliminates unwanted posterization (ugly tonal transitions/color banding), doing so intelligently enough that it does not degrade the sharpness of other details.

The processor also handles upscaling lower-resolution content to 4K very well. Although evaluating this element can be mostly academic, because the differences between today's TVs in this class are very subtle. The most important takeaway is that TCL finally has nothing to be ashamed of compared to the competition.

Digital processing and upscaling have long been Sony’s signature strength, and after testing the Bravia 9 II we can confidently say nothing has changed on the market in that respect. Sony is still at the forefront. Their proprietary XR image processor, which in this model works with the main MediaTek Pentonic 1000 chip, deserves the highest praise. That combination delivers excellent results. The upscaling of lower-resolution content is extremely effective and precise.

However, what most deserves praise in the XR processor’s performance is the tonal transition smoothing feature. The system can reduce posterization in heavily compressed material to virtually zero. Crucially, the algorithm does this in a very intelligent way. It removes only the annoying digital "steps" in gradients without blurring fine texture details or creating an artificial, "plastic" look that lacks film grain. The image remains sharp, natural, and cinematic.

The TCL C8L is equipped with a fast panel that has a native 144 Hz refresh rate. That spec will be most appreciated by demanding PC gamers, while most users, who rely on consoles or TV broadcasts, will use a steady 120 Hz. It is at 120 Hz that motion processing algorithms handle image rendering for movies, series, and sports. In the TV’s menu you’ll find a "Motion Clarity" option that lets you adjust the motion smoothing to your preferences. The algorithms handle cinematic material at 24 or 30 frames per second (fps) as well as dynamic sports broadcasts at 50 or 60 fps, maintaining appropriate smoothness.

The Sony Bravia 9 II's specifications don't list staggering refresh rates above 120 Hz, which some more demanding PC gamers may view as a drawback. However, in everyday use, during movie sessions, playing console games, or watching sports, it's really hard to find any complaints about motion smoothness. The VA-type panel used here does show some slight, inherent smearing typical for this panel type, but excellent Motionflow motion smoothing algorithms come to the rescue. In the system menu you'll find sliders for blur reduction and smoothing that let you precisely tailor the motion characteristics to your preferences.

For gamers – especially for those with powerful PCs and several consoles at the same time – the TCL C8L is a true beast. It’s the first model in the manufacturer’s lineup equipped with four full HDMI 2.1 ports with a maximum bandwidth of 48 Gbps. This is directly thanks to the new Pentonic 800 processor we wrote about earlier. Additionally, the TV seamlessly supports virtually every gaming feature. It has an automatic game mode (ALLM) that reduces latency to minimal levels and full frame synchronization (VRR) operating in an impressive range of up to 288 Hz. We’re also talking about standards like G-Sync or FreeSync from Nvidia and AMD. When it comes to image display standards, there are also no compromises: the C8L offers complete support for HDR formats in games, including gaming Dolby Vision and the HGiG profile. All of these features can be conveniently managed from a very readable game bar (Game Bar), which we can customize according to our preferences. From a purely gaming perspective, there really isn’t anything to complain about in the C8L – well, maybe aside from the previously mentioned slight ghosting. But other than that? It’s an unflawed machine for gamers.

Apart from a fairly serious design oversight, limiting the platform to just two full HDMI 2.1 ports, the Bravia 9 II offers almost all key gaming features available on the market. Sony has already accustomed us to such a rich package in its previous models. The list of supported technologies is very long. It includes automatic low-latency mode (ALLM), variable refresh rate (VRR), as well as a proper implementation of the HGIG standard and the Dolby Vision format specifically designed for gamers.