Intel Xeon D 1581 's Advantages
Lower TDP (65W vs 210W)
Xeon w5 2545 '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 (3.5GHz vs 1.8GHz)
Larger L3 cache size (30MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)