Intel Xeon E5 4620 v3 's Advantages
Larger L3 cache size (25MB vs 18MB)
Intel Xeon W 11855M 's Advantages
Released 5 years and 11 months late
Higher specification of memory (DDR4-3200 vs DDR4-1866)
Newer PCIe version (4 vs 3)
Higher base frequency (3.2GHz vs 2GHz)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (35W vs 105W)