I actually had originally set up a 670 in the build, but this is for photo and video editing with Adobe (not so much for games), and since the 670 is TECHNICALLY unsupported for Premiere's MPE, the money ended up going into 32gb mem instead of 16. But I expect to upgrade the vid card in a coupe years as the first thing.
Stock 570 gets pretty loud? Darn good to know. I am often dealing with whispers in my audio edits. i was initially more concerned with cooling the GPU (three comps blew due to GPU overheat back in the day), but if the 2 fan unit is quieter, that's a big brownie point in it's favor.