I currently have radeon 6450. I am upgrading to either a gtx 760 or gtx 770. If I get a 760 I could get a 4gb version. But with the 770 I can only get the 2gb version. I am mainly going to be playing f1 2014 (when it comes out), 2k14, and minecraft. I want to play on 1080p minimum on a 27" display.