Your CPU is pretty good for gaming, although an older Phenom II 955 would have been a better choice, it won't be a problem. The only thing that should be a concern is your Graphics Card. It offers up about the same performance as an HD6770 or HD7750, which aren't exactly "High End" But are still very viable options. I would say that no game is a match for your computer. Even at more modest settings like Low-Medium, newer games look quite good.
As to what you can play, pretty much anything out there. I can play Far Cry 3 on mostly High settings with a few medium here and there with about 45-50FPS on my HD6750 and Phenom II 965.