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 20MB)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (80W vs 140W)
Intel Xeon E5 1680 v3 's Advantages
Higher base frequency (3.2GHz vs 2.8GHz)