Intel Xeon E7 4820 v3 's Advantages
Lower TDP (115W vs 300W)
Intel Xeon w9 3475X 's Advantages
Released 7 years and 8 months late
Higher specification of memory (4800 vs 1866)
Newer PCIe version (5 vs 3)
Higher base frequency (2.2GHz vs 1.9GHz)
Larger L3 cache size (82.5MB vs 25MB)
More modern manufacturing process (10nm vs 22nm)