Intel Xeon E5 2620 v2 's Advantages
Released 10 months late
Newer PCIe version (3 vs 2)
Larger L3 cache size (15MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (80W vs 140W)
Opteron 6386 SE 's Advantages
Higher specification of memory (1600 vs 3)
Higher base frequency (2.8GHz vs 2.1GHz)