What CPU would be the best and cheapest without bottleneck on the GTX 960?
Would a Intel G4400 do the trick? If not, how much will it impact the GTX 960?
Any Haswell or Skylake i3 would fit the bill. You'd run out of GPU power before you'd run out of processing power in almost any scenario. The i3-6100 is kind of the go-to CPU for a a mid range system. Here's a review pitting it against other processors using a GTX 960:
Should bottleneck it too much . Although the newer games will stutter a bit using a dual core . But hey it has a good upgradable option ! I say go for it
Any Haswell or Skylake i3 would fit the bill. You'd run out of GPU power before you'd run out of processing power in almost any scenario. The i3-6100 is kind of the go-to CPU for a a mid range system. Here's a review pitting it against other processors using a GTX 960: