Fwiw I upgraded from a GT260 to GTX750 on my 1st Gen i7 a few years back and noticed a massive improvement in CM gaming. I was able to Max out settings for once. But that is going from a low end card.
I now have night blade with gtx 1080 8gb and of course CM plays like dream because of the processing speed alone. I suppose if it's a 4km map of just buildings you would still get a lag at ground level but that still happens in the shooters I play that are maximized.
