I have 3 x 4K monitors which I had hooked up to a 1080 and working fine.
I have just sold the 1080 and moved my other pc into my office (with the 3 x 4k Monitors) and I can't get 4K with the Vega Cards.
1 display will do 4K, but other 2 displays max res is only 2048 x 1080. I have installed the monitor drivers but they just will not recognise as 4K.
I am on the latest drivers and I have 2 x Vega 64's.