Xeon E 2278G 's Advantages
Higher base frequency (3.4GHz vs 3GHz)
Larger L3 cache size (16MB vs 15MB)
Lower TDP (95W vs 130W)
Intel Xeon w3 2425 's Advantages
Released 3 years and 9 months late
Higher specification of memory (4400 vs 2666)
Newer PCIe version (5 vs 3)
More modern manufacturing process (10nm vs 14nm)