AMD has finally clarified the earlier rumors that it is limiting HDR color depth on HDMI 2.0 interface.

While earlier information suggested that AMD is limiting HDR color depth down to 8-bits per cell (16.7 million colors) or 32-bit over HDMI 2.0, it appears that this is not the case. While some sources ran the story without previously checking all the facts, it appears that AMD has no trouble running 4:4:4 10b/c HDR 4K60Hz but only via DisplayPort, since that same setting is simply not possible over HDMI.

According to information coming from Tweaktown.com, which had a chance to talk to Antal Tungler, AMD's Senior Manager of Global Technology Marketing, the HDMI interface is to blame as it is possible to use both 4:2:2 12b 4K60Hz which Dolby Vision TVs accept and 4:4:4 8b 4K60Hz which some other TVs accept as an input.

Of course, if you use DisplayPort 1.2, you should have no problems as this is simply a HDMI 2.0 interface limitation while DisplayPort has enough bandwidth to run any setting.

Hopefully, this will clear some issues that earlier reports started but as always, you should check other sources before raising hell over some issues.



Source: Tweaktown.com.