Xeon E 2478 's Advantages
Released 9 years and 3 months late
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (24MB vs 10MB)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (80W vs 140W)
Intel Xeon E5 1620 v3 's Advantages
Higher base frequency (3.5GHz vs 2.8GHz)