So finally installed DOOM tonight and the 16.5.2 driver... gotta admit the game looks and runs pretty flawlessly. Got in to the advanced settings and turned everything to ultra (not nightmare) except dumb things like chome ab and motion blur. no film grain and I only use smaa 1x. Don't need xfire it seems
My 390X runs Doom at 20-30FPS at 1440P, medium to high settings. That's when it's not crashing, longest I've lasted ingame is around 4-5 minutes.
Big issues on the 390 series with Doom it seems, bah.