Question: can rx 590 run 4k?
Answer: The RX 590 isn't meant for 4k, at least not in the demanding games from our test suite. It would do great in Overwatch or CS:GO, though. Going from 1440p to 4k typically cuts performance in half, assuming you don't run out of VRAM (eg, all the 4GB and lower GPUs), and the RX 590 follows that trend.