Ok, thanks guys, the games that it is lagging on are Crysis 3, Tomb Raider, Serious Sam 3, and pretty much anything I try to run. I am considering buying a fx-8350, for, I can not afford a new Motherboard. Is my PSU fine or should I upgrade that aswell?
Your CPU is on the AM3 socket, just make sure the FX-8350 (AM3+) will work in your current motherboard.
A 700W PSU is more than fine.