AMD CPU's

[vranac]

You can look for 960T. If you plan upgrade only for gaming that one
will be better for you.
It is the same chip like 10xx series, but with 1 or 2 malfunctional cores.
Lot of them can be unlocked into full 6 core chip, but I'm note shure
that your mobo can do that.
960T is easier to OC because it has unlocked multi, and runs cooler.

If you are not planning a lot of 3D rendering that is a better choice
and a cheaper IMO.