puis ils disent dans leur article que le C845 est mieux(pourtant ce n'est pas cas dans les tests US comme Rtings et autres y compris les avis utilisateurs AVSforum)mais si on visite souvent leur site on voit des pub pour cette marque(TCL et Samy)on comprend maintenant pourquoi !
I recently took delivery of an 85 inch Hisense U8K, and I had a day to sit down and compare its performance with the 85 inch TCL QM8; that was being picked up for a return the next day (because of really bad DSE and Vertical Banding on the QM8's panel). Suffice to say, I hit the panel lottery with the U8K. The first thing I did was run the hockey player DSE test on the U8K's native YouTube app, and was pleased to see that there was barely any DSE on the U8K's panel.
Whatever, barely noticeable DSE that was seen on the test, isn't noticable when watching regular content that would usually make DSE apparent (like when watching soccer, hockey etc...). So this TV seems to be a keeper!
Now for direct comparisons with the TCL QM8:
The TCL QM8's Google TV interface and home screen looks slightly better than the Hisense U8K's. The icons/tiles for apps on U8K's Google TV platform look more pixelated, with the overall interface looking dull. The U8K has a grayer looking black background, when compared to the TCL's deeper black background. The overall brightness and quality of images on menu screens of the TCL QM8 makes it look a bit better, than the duller looking Hisense. Although the U8K runs Android TV version 12, and the QM8 runs the older 11th version, the menu screens are all virtually the same, but the U8K's just looks dated due to its dull and pixelated presentation.
In most instances, the U8K is slightly quicker when opening up an app, and is also quicker to load videos on YouTube or Netflix.
I found that the motion processing to be slightly better on the U8K. When running various motion tests off of YouTube, there were slightly less noticeable motion abnormalities/artifacts on the U8K. On the U8K, there also seems to be slightly less stutter going on when streaming 4K Dolby Vision movies/content off of Netflix/MAX. (Also, the QM8 has an issue where the frame rate acceleration setting has to be turned ON again, each time after shutting the TV off.)
Low bitrate content processing/smoothing seems to also be just slightly better on the U8K, but it might be subjective. I watched some soccer match streams on NBC's Peacock app and some highlights videos on YouTube to compare the two TV's side by side, and it seems that the overall processing of the horrible low bitrate and 720p soccer streams were slightly smoother, with a bit more detail on the U8K.
I also tested the TVs side by side on certain scenes on Netflix'sThe Crown, which used to cause motion abnormalities/artifacting/red ghosting on my old Hisense H9G, and also seems to affect most TV's motion processing abilities. When using the same Dolby Vision Dark and IQ settings, for a scene in Season 3, Episode 5 (when the queen gets off of the phone and starts climbing the stairs), the U8K seems to handle the problematic scene's motion better than the QM8. Although they both still display weird motion abnormalities, it's much better than my old Hisense H9G's red ghosting issues on this particular scene.
Both TVs are very bright, and when using the same picture settings on both of them, the TCL QM8 seems to have a brighter "pop" in most scenarios.
Although, both of the TVs seem to sometimes "pick or choose" different ways to process/display certain HDR scenes. With the TVs preferring to brighten or darken different areas of the same scene, producing vastly different HDR presentations. This seems to make the U8K on par with the QM8 in terms of brightness (especially for HDR scenes and specular highlights). Even though the QM8 has the hardware capability to produce a brighter image, this isn't always the case, as it's a tossup as to which TV is producing a brighter/darker, or better/more natural looking image with each given scene.
The U8K has a lot more settings and options to tweak the image produced, whereas the QM8 seems to be for those that wouldn't want to tinker with their TVs as much. Thus, giving the Hisense U8K the capability to closely match (or sometimes even exceed) the image produced by other displays/TVs including the QM8.
For some reason, from the same distance, It seems to me that I can see and distinguish pixels on the U8K, when I can't on the QM8. Subjectively, it doesn't seem to be as noticeable/bothersome to others, as much as it is to me. So, in general, I think the QM8 produces has a slightly clearer/smoother looking image, whereas the U8K produces a more detailed and sharper looking image.
To me personally, despite the U8K having an 8 bit FRC panel, and the QM8 supposedly having a 10 bit panel; color saturation, temperature, and other color related settings are all subjective, and can also be calibrated or adjusted to ones own taste. So, I find color to be irrelevant for comparison between the two TV sets; they both have excellent color presentation.
Both of the TV's have two HDMI 2.1 ports, but personally, i think the Hisense has an advantage with its capability to fully utilize 4K Dolby Vision @ 120hz, (vs the 60hz for the Qm8). The U8K has the MediaTek Pentonic 700 chipset, which gives it the capability to process 4k Dolby Vision @ 120hz (first commercially available TV with this feature made by a manufacturer other than LG), whilst also improving its image processing abilities. Although, admittedly, the use case for 4k Dolby Vision @ 120hz isn't wide-spread at this moment, it's still a feature that I have a bias for.
The QM8 has the advantage of using one of its HDMI 2.0 ports as the designated EARC port, which frees up the second HDMI 2.1 port for proper use, but I think the Hisense U8K can easily overcome this issue; that is, if you're willing to use an HDMI switcher.
Both TV's are excellent as gaming or PC monitors. I didn't experience any major ghosting or motion issues on both of them. I beleive black smearing is an issue that all VA panels have whilst gaming, and it is barely noticeabl, and more than acceptable on both of theese TVs. So, they are great for gaming on. For general PC use, they both have Full RGB 4:4:4 Chroma, so text is clear and images are good on both of the TVs.
Both of the TV's have an issue where they both cannot get HDR and VRR (Freesync) to display as working together on their respective game modes; but, I have found a solution! Thanks to another AVS forum member's help (on the TCL QM8 owner's thread). This issue/problem is also listed on the RTINGS.COM "Variable Refresh Rate" section of the U8K's review, but I personally think that they suggest an incomplete solution for PC gamers in particular.
I will post the solution on my next post, as this post is getting way too long.
In conclusion, and in my opinion, I think both TV's are great value for the performance that they provide. I purchased the 85 inch versions of the TCL QM8 for USD $1870.00, and the Hisense U8K for $1800.00.
But, for me personally, I think that the Hisense U8K just slightly edges it over the TCL QM8, due to its marginally better motion, processing, and tinkering abilities, along with its support for 4K Dolby Vision @ 120hz, I thinks it's the best 4K/VA/Mini-LED gaming TV currently on the market.