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SvennoJ on 20 November 2016
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walsufnir said:
KBG29 said:
Can't wait to see Gran Turismo Sport on my PS4 Pro and Z9D. With the compression of 4K video, even in UHD BR, the image quality for GTS will easily surpass anything we have seen in video form. Kaz is not the only one to say this either. Many developers across the industry have been talking about the great honor it is to be the first ones working on, and taking full advantage of the new display tech. Games are surpassing Movies in every aspect, and the gap will only grow going forward.

With the compression of 4K video, even in UHD BR, the image quality for GTS will easily surpass anything we have seen in video form.

 

Eh, what? No. The compression is of course there but you will not achieve anything that looks better than a movie on UHD from a console which has to render frames in real time.The bitrate is so high that you won't see any notable difference in comparison to uncompressed video.

Also, movies can't be surpassed, they can at best look the same.

He's right technically.

4K video is limited to 4:2:0 chroma subsampling, meaning a color resolution of 1920x1080 or 1 color sample per 4 pixels.
4K games render in 4:4:4 RGB, 3840x2160 color samples. (or half that with checkerboarding, still twice that of 4K video)
Bitrate of 4K UHD discs is max 128 mbps (much less for video though), HDR 10 bit 4K 4:4:4 RGB at 60fps is 13.9 Gbps.

You really think you can't see the difference between 1920x1080 color samples at max 128mbps and 3840x2160 color samples at 13.9 gbps.


It's nothing new though. Blu-ray only has 960x540 color samples per frame at max 48 mbps for video. Only games have utilized 1080p screens to their full potential.