Hi Im new to tomshareware and sorry if i post this in the wrong section. I just have one question about upgrading a graphics card. I currently have a Hp pavilion p7-1003 and the integrated graphic card is ATI Radeon 4200. My CPU is AMD athlon II X4 650 3.2ghz. I was wonder if the gtx 550i is capable without the cpu being a bottleneck? or is it not enough to get the full potential of the gtx. is there a graphic card enough for this cpu without being a bottleneck? any suggestion would great!. or can i actually upgrade the cpu? cause i bought this comp pre built.