I have a Gtx 1070 and a fx 8320
Clocked at 4.5(I can hit 5ghz but the increase wasn't worth the heat) and I got 50-60 everywhere on witcher with EVERYTHING maxed out at 1080. I get 70+ maxed on fallout 4 also. You can also take more of the cpu out of it going up to 1440, but your better off maxing stuff out at 1080. There's a video on YouTube showing the bottleneck in gta v where at high the 8350
Chokes it abit but at ultra the bottleneck is gone more or less.