Xeon E 2278GEL 's Advantages
Released 7 years and 3 months late
Higher specification of memory (2666 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (35W vs 95W)
Intel Xeon E5 2658 's Advantages
Higher base frequency (2.1GHz vs 2GHz)
Larger L3 cache size (20MB vs 16MB)