Phenom II X4 955 or FX-4 4100



Probably the same at stock speeds the 955 is a little better clock for clock but the 4100 is clocked faster and has more overclock headroom. And in theory there is an outside chance a 3rd or 4th module could be unlocked, though AMD says no. But they said no with Phenom II also.

I would roll with the 4100 as long as the price is right.