Xeon w7 2575X 's Advantages
Released 7 years late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (45MB vs 13.75MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon W 2155 's Advantages
Higher base frequency (3.3GHz vs 3GHz)
Lower TDP (140W vs 250W)