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SvennoJ on 05 October 2017
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Peh said:
SvennoJ said:

The ps4 pro does 4K HDR 10 bit RGB or 4:4:4 via hdmi 2.0a, I had to swap my cables as the old cable couldn't handle it. (Putting a end to the 'hdmi cables are all the same' myth, I only got static, while the cable works fine at lower resolutions) I expect the One S and One X to do the same, why take the effort to compress the signal?

Both of them still don't look anywhere close to real life. Resolution has outpaced fidelity in the environments so far that both are very much looking like video games again. And lol at still using kite cam in 2017 for supposed sim racers. That nonsense should be locked to arcade mode. That said, I prefer the lighting in GTS, can't wait to see how it translates to PSVR's OLED screen.

Btw since both have the same cars and tracks, isn't it time for Forza/GT cross play. Come on, epic battles await. Which cars actually drive better.

Thanks for the reply. But as far as I read, 4K 60 hz HDR 10 Bit RGB at chroma 4:4:4 are not possible with the current HDMI 2.0/a/b, because that exceeds the bandwidth of 18 Gbps. That's what current Premium HDMI cables are capable of. 

On my PC/TV settings I can only go for YUV 4:2:2 10 Bit 4K at 60 hz or YUV 4:4:4 / RGB at 8 bit 4k 60 hz. 

https://forums.geforce.com/default/topic/980356/4k-resolution-at-60p-and-10-bit-in-tv-help/

That's why I am curious at how the consoles are doing it. Or am I missing something?

HDMI 2.1 on the other hand doubles the bandwidth and newer HDMI cables are on the way for supporting that bandwidth. 

On an additional note. Windows 10 CU only enables HDR on YUF 4:2:2 10 bit. I could use HDR on 8 bit before win 10 CU on Resident Evil 7. Now it looks like shit. Same goes for Forza 7 on PC in HDR. 

4K at 60hz 10 bit is 'only' 13.9 Gbps, within the max 14.4 Gbps max video bandwidth of an 18 Gbps cable. 3840x2160x60x30 / (1024x1024x1024)
I can't find any hard info on actual support though, nor do my tv or the ps4 pro offer any info on the bit depth, color space used or chroma compression. Just 2160p RGB all frequencies upto 60hz supported with HDR. I guess I'll need to find/make some test patterns to check for chroma subsampling and bit gradients.

HZD looks great though, but with nothing to compare, who knows what I'm looking at