Hey all, I recently bought an Athlon II X3 440 (3ghz) for a midrange gaming rig (SC2 and FF14) and I was lucky enough to have a good 4th core. But my friend just upgraded and gifted me a Phenom II X3 720 Black Edition (2.8Ghz) with a bad 4th core. I'm wondering which is better. I have a Cooler Master Hyper TX3 cooler for the system and am planning to OC.
As said by hell_storm already, the Phenom II 720 BE is a better processor.. However, since you've successfully unlocked the 4th core of your current CPU, you are potentially running a quad core which is good anyday.. So, i'd recommend you to stick with your current unlocked CPU..
Well, for now, not all games make use of the 4-th core, so let's say that a 3-core CPU is "ideal" for gaming at this moment. I would probably choose the X3 720 if you're gaming only, due to the larger cache (6MB L3 vs 2MB L3).
But if you can't live w/o multitasking, then stay with the "x3" 440, as the unlocked 4-th core could make a large difference in multitasking.