Intel Xeon E5 2620 v3 's Advantages
Higher base frequency (2.4GHz 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 15MB)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (35W vs 85W)