I have see in a benchmark result that phenom 555 x2 beat athlon x4 (crysis). But i see when avg virus scan was running and same time game running then athlon x4 beat phenom(athlon 30 fps and phenom 9 fps). So if you going for multitasking go for athlon x4 . or not, go to phenom 555 x2 be. No doubt.