Intel Xeon w7 3445 's Advantages
Released 8 years and 3 months late
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (52.5MB 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)