Xeon E 2278G 's Advantages
Released 5 years and 8 months late
Higher specification of memory (2666 vs 1866)
Larger L3 cache size (16MB vs 10MB)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (95W vs 130W)
Intel Xeon E5 1620 v2 's Advantages
Higher base frequency (3.7GHz vs 3.4GHz)