However, it is widely known that the maximum bandwidth of HDMI 2.0b is 18Gbps. Using any of the available online HDMI bandwidth calculators (Murideo has a good one), you will find that a 4K (actually UHD 3840 x 2160) 60Hz signal with 10-bit color and 4:4:4 chroma uses 20.05Gbps bandwidth and is therefore incompatible with HDMI 2.0 devices and It also expanded support to 4K video at 60 frames per second with all the forms of high dynamic range (HDR) and laid the groundwork for 8K. HDMI 2.1 launched in 2018 and is designed to support 8K In nearly all cases everything marketed as HDMI 2.1 at least includes the high bandwidth support beyond HDMI 2.0, with most delivering the additional features like VRR too. We would much rather see the continued use of HDMI 2.0 labelling than a mass “abuse” of the HDMI 2.1 name.
On the HDMI side, 10bpc requires 4:2:2 or 4:2:0 chroma sub sampling. On the DisplayPort side, with only two lanes, 10bpc requires DSC, or HBR2 4:2:0 (< 576MHz), or HBR3 4:2:2. But you said refresh rate 120 which means you are probably using a lower resolution such as 1440p or 1080p. 1440p120 = 483 - 497MHz.
If you want to enable HDR for a higher resolution display, say 8K, HDMI 2.0 cable may not support it. In this case, try HDMI 2.1 cable. Read : How to check If HDR is supported on a Windows 11 PC . HDR is important to me. Does the GTX 970 support this standard of HDR for DolbyVision movies? I believe it needs HDMI 2.0a and the specs I see for 970 say 2.0, but I am not sure if a firmware/driver update allows 2.0a and the full HDR for movies? Which is why we thought you’d want to know that 4K 120Hz is already doable with HDMI. Another important “but” is that HDMI 2.0 doesn’t officially support 4K at over 60Hz, only HDMI 2.1 does. Experimenting and trying to force 120Hz won’t hurt anything or invalidate warranties, but it may not work. A lot of it will also depend on the Xbox Series X needs HDMI 2.1 for Variable Refresh Rate as it looks like it doesn't support FreeSync. The monitor supporting FreeSync does not imply HDMI based VRR support. As for using 4:2:2 mode, considering the One X allows switching to that mode, you can probably do it on the Series X.
From the statement "‌Mac mini‌, it can support up to 4K resolution at 240Hz ove‌r HDMI", I think it has to be 2.1 as 2.0b can't do that even with DSC. However, it sounds like there is a caveat with the total amount of video output bandwidth the GPU can support, probably around the HDMI 2.1 limit of 42.6 GBit/sec.
Hdr support from Hdmi 2.0a and DP 1.4. Guide to Display Cables / Adapters (v2) Glenwings Guide to Display Cables / Adapters This is a guide intended to assist with the selection of cables and adapters.
The manufacturer added HDMI 2.1 support for its latest revision, delivering the best of 4K HDR content. Whether on Xbox One today or readying for Xbox Series X, the LG C9 and B9 provide unrivaled
The manual says something about data and video modes which open up many standard timings over HDMI. HDMI 2.0 is capable of 4K/60/HDR10 simultaneously. You may want to ask support about that. I also suggest you contact ROG support and make sure your firmware is up to date.
The questions still apply though!) that is 4K and has a 120 Hz refresh rate, but does not have HDMI 2.1. Is HDMI 2.0 good enough to enjoy the enhanced features of the XSX? Or is splurging for HDMI 2.1 the way to go? Also, if you have any affordable TV recommendations that support HDMI 2.1 / 4K 120 Hz, please let me know!
3. quicksilverpr. • 2 yr. ago. HDMI 2.0b has almost the same features of HDMI 2.1 less the bandwidth and 4K 120hz (for TV's or monitor that support 4K gaming). VRR, ALLM, eARC, low input lag are available on HDMI 2.0b you can play on PS5 1080p 120hz. On PC you can play 1080p, 1440p @ 60 - 144hz if your monitor support 144hz refresh rate. yzXAG5.
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    • does hdmi 2.0 support hdr