Fired this up just now. VERY impressed and actually not too taxing system wise. In fact, I think Heaven and Valley may be harder to run.
Says the guy with SLI Titans! TBH, the standard 1080 Medium setting is pretty system friendly, and it's very pretty - I always found Valley disappointing in that regard. I stuck it on 1080p Extreme and my rig could barely crack 30 fps.
This bench doesn't care less for the CPU. It really matters diddly squat. All about the GPU and the frequency.
Dunno I I need the latest drivers or not, but SLI wasn't working and it was still performing extremely well, even for a Titan!