Intel Xeon E7 8870 v3 's Advantages
Larger L3 cache size (45MB vs 33.75MB)
Lower TDP (140W vs 210W)
Xeon w7 2555X 's Advantages
Released 9 years and 2 months late
Higher specification of memory (4800 vs 1866)
Newer PCIe version (5 vs 3)
Higher base frequency (3.3GHz vs 2.1GHz)
More modern manufacturing process (10nm vs 22nm)