Opteron 8346 HE (B3) 's Advantages
Higher specification of memory (667 vs 4)
Higher base frequency (1.8GHz vs 1.5GHz)
Larger L3 cache size (2MB vs 1.5MB)
Intel Xeon D 1557 's Advantages
Released 7 years and 9 months late
More modern manufacturing process (14nm vs 65nm)
Lower TDP (45W vs 68W)