A single R9 390X provides ample performance at 4K with a mix of medium/high settings, but I wanted to see if AMD had improved ... another article looking at 1920x1080 and 2560x1440.

When I first reviewed the AMD Radeon R9 ... Compare this to 1920x1080 (Full HD, or 1080p) which is rendering 124,416,000, or 124 million pixels per second - the 4K Surround system is rendering ...