Intel Xeon E5 1660 v3 's Advantages
Lower TDP (140W vs 270W)
Intel Xeon w5 3425 's Advantages
Released 8 years and 5 months late
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3)
Higher base frequency (3.2GHz vs 3GHz)
Larger L3 cache size (30MB vs 20MB)
More modern manufacturing process (10nm vs 22nm)