Xeon E 2278G 's Advantages
Released 7 years late
Higher specification of memory (2666 vs 3)
Larger L3 cache size (16MB vs 8MB)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E3 1280 v2 's Advantages
Higher base frequency (3.6GHz vs 3.4GHz)
Lower TDP (69W vs 95W)