Originally posted by BigDave Is it the same or similar with 4K?
I think resolution is mostly to do with the size of the monitor and how far you're sitting away from it.
I'm not 100% sure, but I don't think colour bit depth would have the same effect as resolution in this instance.. but I see what you're saying about diminishing returns.
Most YouTube watchers are watching on their smart phones... small screen at close distance doesn't necessarily benefit from 4K... but I'm thinking that colour bit depth would be similar on various screen sizes... again with diminishing returns though.