PureOverclock has published a review of the AMD Athlon II X4 620 processor.

Not since the heyday of the original Athlon has AMD really stuck it to Intel, but this new Athlon II X4 sounds very promising. Sure it's inexpensive, but what about performance? Is it completely handicapped by the lack of L3 cache that its larger sibling the Phenom II carries? Can the new Athlon Quad overclock any better than recent AMD offerings, and if so, just how far can it go? We'll answer these questions today, and there are some very interesting surprises in store for you.

AMD Athlon II X4 620 Review