Best 200$ cpu+mobo for gaming?

Rammy

Honorable
Assuming he has the motherboard in his sig he is stuck with Phenoms unless he changes motherboard.

$200 isn't a bad budget for a CPU+motherboard though, around that price bracket it's likely you are going to be looking at an FX6300 or i3 3220, depending on preferences and usage.
 
Either the FX-6300 or the FX-8320 is a good upgrade from the athlon, if he can afford the FX-8320, obviously it will be better.
http://www.anandtech.com/bench/Product/188?vs=699

Well then get the FX-6300+asrock extreme 4 and xigmatek gaia for just 242$ and get the 7870XT sapphire(7870 tahiti le) in amazon for 245$.
Or the FX-8320+asrock extreme 4+ xigmatek gaia for 278$ and the 7870 ghz edition in newegg.