Intel Xeon E3 1585L v5 's Advantages
Higher base frequency (3GHz vs 2.8GHz)
Lower TDP (45W vs 80W)
Xeon E 2478 's Advantages
Released 7 years and 7 months late
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (24MB vs 8MB)
More modern manufacturing process (10nm vs 14nm)