Intel Xeon D 1581 's Advantages
Lower TDP (65W vs 225W)
Intel Xeon w7 2475X 's Advantages
Released 7 years late
Higher specification of memory (4800 vs 4)
Newer PCIe version (5 vs 3)
Higher base frequency (2.6GHz vs 1.8GHz)
Larger L3 cache size (37.5MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)