Intel Xeon w5 2455X 's Advantages
Released 8 years and 1 months late
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3)
Higher base frequency (3.2GHz vs 2.3GHz)
More modern manufacturing process (10nm vs 22nm)
Intel Xeon E5 2669 v3 's Advantages
Lower TDP (120W vs 200W)