Xeon w7 3555 's Advantages
Released 8 years and 6 months late
Higher specification of memory (4800 vs 4)
Newer PCIe version (5 vs 3)
Higher base frequency (2.7GHz vs 1.7GHz)
Larger L3 cache size (75MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon D 1587 's Advantages
Lower TDP (65W vs 325W)