Intel Xeon E5 1680 v2 's Advantages
Higher base frequency (3GHz vs 2.8GHz)
Larger L3 cache size (25MB vs 24MB)
Xeon E 2478 's Advantages
Released 10 years and 3 months late
Higher specification of memory (DDR5-4800 vs DDR3-1866)
Newer PCIe version (5 vs 3)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (80W vs 130W)