seems to work fine, BF3 runs on high pretty well with his GTX 660 ti. (@3.1)
Well when you get a proper CPU then you will notice the difference. I bought the x3 720 in 09 just to save money because I am a gamer but it was a mistake. The x4 940 was much better for running games. I would have got an Athlon II x4 640 over the Phenom II x3 720 TBH.