Xeon E 2278GE 's Advantages
Released 4 years late
Higher specification of memory (2666 vs 1866)
Higher base frequency (3.3GHz vs 1.7GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (80W vs 105W)
Intel Xeon E5 4648 v3 's Advantages
Larger L3 cache size (30MB vs 16MB)