Intel Xeon D 1520 's Advantages
Higher base frequency (2.2GHz vs 1.9GHz)
Lower TDP (45W vs 350W)
Intel Xeon w9 3495X 's Advantages
Released 7 years and 11 months late
Higher specification of memory (4800 vs 4)
Newer PCIe version (5 vs 3)
Larger L3 cache size (105MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)