So with new releases of cards like the rx 480, and the soon gtx 1060, I am worried about vram. The rx 480 had 8gb of vram while its opponent gtx 970 has only 4gb of vram. Right now, the 970 oc versions are better, so should a buy a gtx 970 ssc edition w/ 4gb of vram or wait for the aftermarket companies to make their oc'd versions of the rx 480. thanks