Xeon E7 4820 's Advantages
Higher base frequency (2GHz vs 1.9GHz)
Lower TDP (105W vs 350W)
Intel Xeon w9 3495X 's Advantages
Released 11 years and 10 months late
Higher specification of memory (4800 vs 1333)
Larger L3 cache size (105MB vs 18MB)
More modern manufacturing process (10nm vs 32nm)