Well, I was wanting to build a pc containing a gtx 670 2gb. But wondered will this become obsolete for next gen? Will my pc struggle to even play next gen titles. The ps4 alone has 8gb ddr5 ram. The killzone demo used 3.2gb of gpu ram alone. Should I wait? I can't afford to have to upgrade to play next gen titles on pc. Should I just get the ps4?
no, the 670 will not struggle to play next gen tittles, RAM doesnt run games, might make them load faster though.
you could get a 4gb 760 if you're so worried about gpu ram. pc will always be better then consoles.