so ! im going to build a gaming pc ! ive asked this question bt no body knows ! so i want to ask that i have a CORE 2 QUAD CORE 2.67 ghz already ! and going to buy a hd 7790 ! can my cpu handle the newest games like ac4,watch dogs ,at high,ultra 1280x1024,1600x900?! or i have to buy a core i5 ?