Eh. I think most if not all games still use less than 4gb of vram at 4k. Shadow of Mordor can be played perfectly fine at 4k with textures installed on a 4gb card, despite their 6gb recommendation. Games like BF4, Crysis 3 won't use more than 4gb either. One thing about that build, though, is why 16gb of ram for gaming? Should be 8gb and the saved money should be put into a better CPU cooler, in my opinion.