Opteron 8347 HE (B3) 's Advantages
Lower TDP (68W vs 80W)
Xeon E 2126G 's Advantages
Released 10 years and 2 months late
Higher specification of memory (2666 vs 667)
Higher base frequency (3.3GHz vs 1.9GHz)
Larger L3 cache size (12MB vs 2MB)
More modern manufacturing process (14nm vs 65nm)