Yeah, the FX5200 isn't great for new games, but since its PCI, its okay.
I tried to find anything higher up than that but couldn't and found this:
Though strangly, even though it says its a FX5700...its built on the 5200, so can't be real... or is overclocked to be as good as the 5700...
Anyway, try this for size:
Its a BFG (Great make which pre-overclocks video cards) and this is a BFG FX5200