Intel Xeon E5 2687W v3 's Advantages
Higher base frequency (3.1GHz vs 2.1GHz)
Larger L3 cache size (25MB vs 24MB)
Intel Xeon W 11955M 's Advantages
Released 6 years and 8 months late
Higher specification of memory (3200 vs 2133)
Newer PCIe version (4 vs 3)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (35W vs 160W)