Intel Xeon E5 1603 v3 's Advantages
Higher base frequency (2.8GHz vs 2.1GHz)
Intel Xeon W 11955M 's Advantages
Released 6 years and 8 months late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 3)
Larger L3 cache size (24MB vs 10MB)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (35W vs 140W)