Monitor recommendations

[king1]

to some extent it should be ok - there's an answer to that question here
https://www.quora.com/Can-I-watch-4k-60-...-a-GTX-970

which basically says check the specs of the exact model of your card...

Have not heard anything about 10 or 11 being any better/worse at 4K, to me this sort of query is always about the graphics card, not the operating system.

Newer cards will likely have better encoder support for hevc h265 codecs, possibly others - older and entry level cards won't have that