Intel Xeon W 11955M 's Advantages
Released 5 years and 11 months late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 3)
Higher base frequency (2.1GHz vs 1.7GHz)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (35W vs 105W)
Intel Xeon E5 4648 v3 's Advantages
Larger L3 cache size (30MB vs 24MB)