The game is very demanding on GPUs.
At 1440p my GTX780 @ 1150mhz sits at around 75-90% usage at all times to maintain 60FPS. I can't even imagine what 4k would do to it.
This is probably the most demanding game I have outside of Crysis 3, ENB + Texture Mod Skyrim, and the new Tomb Raider. Considering the difference in graphics of all of those games and D:OS, it's crazy how much GPU is used for this game.
