Hello, i have an old pc. 2gb ram, new gt630, 360gb hdd and a amd athlon x2 4450e 2.3ghz. I tried to game at 720p.. Some games work.. Some don't. I saw videos on youtube of people playing bf3 multiplayer with gt630 at 720p with no problems.. So i guess it's my cpu that's bottlenecking. I found a cheap amd x2 5200+ 2.7ghz.. Would i be able to play 720p with that cpu?