4K 60Hz 4:4:4 bandwidth requirements
Here is a nice link for the HDMI bandwidth/speed requirements, although it is from June 2017.
http://community.cedia.net/blogs/david-meyer/2017/06/22/4k-60-444-hdr
Unfortunately, his calculations are off. The basis that you can’t have HDR with 4K 60Hz 4:4:4 within the HDMI 2.0 limits is correct, but (a) he doesn’t explain where his numbers come from and (b) his numbers differ from what Wikipedia says and explains on HDMI bandwidth. His limit is also off from what Wikipedia says it is.
I’ll rather take a peer reviewed and revised encyclopedia with details over a blog of a self appointed ‘expert’ of a trade organization, that pulls numbers out of thin air. He’s sales, not tech.
The HDMI 2.0a standard is from 2015, so a 2017 blog doesn’t have to be outdated.