Intel Xeon W 2155 's Advantages
Higher base frequency (3.3GHz vs 2.6GHz)
Lower TDP (140W vs 225W)
Intel Xeon w7 2475X 's Advantages
Released 5 years and 6 months late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (37.5MB vs 13.75MB)
More modern manufacturing process (10nm vs 14nm)