Opteron 8347 HE (B3) 's Advantages
Higher base frequency (1.9GHz vs 1.6GHz)
Lower TDP (68W vs 85W)
Intel Xeon E5 2603 v3 's Advantages
Released 6 years and 4 months late
Higher specification of memory (1600 vs 667)
Larger L3 cache size (15MB vs 2MB)
More modern manufacturing process (22nm vs 65nm)