Long time reader, first time poster here: I have an E6300 Conroe on a GA-965P-S3 rev. 1.0 mobo and would like to get better fps in my games (HL2 - All variations & Dragon Age). My current GPU is a PNY 9800GT (1Gb). Should I expect performance gains from an HD 5770 or is my CPU going to bottleneck it?