Opteron 8360 SE (B3) 's Advantages
Higher base frequency (2.5GHz vs 2GHz)
Xeon E7 4820 's Advantages
Released 3 years late
Higher specification of memory (1333 vs 667)
Larger L3 cache size (18MB vs 2MB)
More modern manufacturing process (32nm vs 65nm)
Lower TDP (105W vs 119W)