Xeon E 2278G 's Advantages
Higher base frequency (3.4GHz vs 2.8GHz)
Larger L3 cache size (16MB vs 8MB)
Intel Xeon E 2314 's Advantages
Released 2 years and 4 months late
Higher specification of memory (3200 vs 2666)
Newer PCIe version (4 vs 3)
Lower TDP (65W vs 95W)