Xeon E 2278G 's Advantages
Released 5 years and 8 months late
Higher specification of memory (2666 vs 3)
Higher base frequency (3.4GHz vs 2.5GHz)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E5 2450 v2 's Advantages
Larger L3 cache size (20MB vs 16MB)