Intel Xeon D 1520 's Advantages
Lower TDP (45W vs 270W)
Intel Xeon w5 3425 's Advantages
Released 7 years and 11 months late
Higher specification of memory (4800 vs 4)
Newer PCIe version (5 vs 3)
Higher base frequency (3.2GHz vs 2.2GHz)
Larger L3 cache size (30MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)