Intel Xeon E5 2667 v3 's Advantages
Higher base frequency (3.2GHz vs 1.9GHz)
Lower TDP (135W vs 250W)
Xeon 6766E 's Advantages
Released 9 years and 9 months late
Higher specification of memory (6400 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (108MB vs 20MB)
More modern manufacturing process (5nm vs 22nm)