Intel Xeon w5 2455X 's Advantages
Released 2 years and 9 months late
Higher specification of memory (4800 vs 2933)
Newer PCIe version (5 vs 3)
Larger L3 cache size (30MB vs 20MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon W 1290 's Advantages
Lower TDP (80W vs 200W)