Xeon w7 2555X 's Advantages
Released 3 years and 3 months late
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
Larger L3 cache size (33.75MB vs 16MB)
More modern manufacturing process (10nm vs 14nm)
Xeon W 1390P 's Advantages
Higher base frequency (3.5GHz vs 3.3GHz)
Lower TDP (125W vs 210W)