Opteron 8347 HE (B3) 's Advantages
Higher specification of memory (667 vs 3)
Lower TDP (68W vs 130W)
Intel Xeon E5 2637 v2 's Advantages
Released 5 years and 4 months late
Higher base frequency (3.5GHz vs 1.9GHz)
Larger L3 cache size (10MB vs 2MB)
More modern manufacturing process (22nm vs 65nm)