Intel Xeon W 3375 's Advantages
Released 6 years and 8 months late
Higher specification of memory (3200 vs 2133)
Newer PCIe version (4 vs 3)
Larger L3 cache size (57MB vs 25MB)
More modern manufacturing process (10nm vs 22nm)
Intel Xeon E5 2666 v3 's Advantages
Higher base frequency (2.9GHz vs 2.5GHz)
Lower TDP (135W vs 270W)