Xeon E 2278GEL 's Advantages
Released 4 years and 9 months late
Higher specification of memory (DDR4-2666 vs DDR4-2133)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (35W vs 105W)
Intel Xeon E5 2658 v3 's Advantages
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (30MB vs 16MB)