Intel Xeon D 1581 's Advantages
Released 8 years and 5 months late
More modern manufacturing process (14nm vs 65nm)
Lower TDP (65W vs 68W)
Opteron 8347 HE 's Advantages
Higher specification of memory (667 vs 4)
Higher base frequency (1.9GHz vs 1.8GHz)
Larger L3 cache size (2MB vs 1.5MB)