Intel Xeon W 11955M 's Advantages
Released 9 years late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (24MB vs 20MB)
More modern manufacturing process (10nm vs 32nm)
Lower TDP (35W vs 130W)
Intel Xeon E5 4650 's Advantages
Higher base frequency (2.7GHz vs 2.1GHz)