Intel Xeon E5 1660 v2 's Advantages
Higher base frequency (3.7GHz vs 2.1GHz)
Intel Xeon W 11955M 's Advantages
Released 7 years and 8 months late
Higher specification of memory (DDR4-3200 vs DDR3-1866)
Newer PCIe version (4 vs 3)
Larger L3 cache size (24MB vs 15MB)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (35W vs 130W)