I currently have 8 gigs of ddr3 ram, a gtx 960 2 gig and an fx 6300 cpu. I play gta v at very high textures, 1080p resolution and most of the other settings maxed (besides ones that that do much and use a lot of vram) and I go above the gta v vram limit in settings by about a .5 gig and I get decent fps (45ish). Would it really be worth upgrading to let's say a gtx 970 or 1070 when it comes out with out upgrading the rest of my system and getting a 4k monitor? Would a 970 or 1070 really do much better at 1080p and with my current cpu?