Xeon E 2278GE 's Advantages
Released 4 years late
Higher specification of memory (DDR4-2666 vs DDR3)
Higher base frequency (3.3GHz vs 2.2GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (80W vs 115W)
Intel Xeon E7 4850 v3 's Advantages
Larger L3 cache size (35MB vs 16MB)