Intel Xeon E5 2667 v3 's Advantages
Higher base frequency (3.2GHz vs 2.7GHz)
Lower TDP (135W vs 325W)
Xeon w7 3555 's Advantages
Released 9 years and 11 months late
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (75MB vs 20MB)
More modern manufacturing process (10nm vs 22nm)