Opteron 8347 HE (B3) 's Advantages
Higher base frequency (1.9GHz vs 1.8GHz)
Lower TDP (68W vs 75W)
Intel Xeon E5 2648L v3 's Advantages
Released 6 years and 4 months late
Higher specification of memory (2133 vs 667)
Larger L3 cache size (30MB vs 2MB)
More modern manufacturing process (22nm vs 65nm)