Xeon E 2478 's Advantages
Released 13 years and 10 months late
Higher specification of memory (4800 vs 1066)
Newer PCIe version (5 vs 2)
Higher base frequency (2.8GHz vs 2.133GHz)
Larger L3 cache size (24MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)
Xeon EC3529 's Advantages
Lower TDP (65W vs 80W)