Xeon E 2244G 's Advantages
Higher base frequency (3.8GHz vs 2.8GHz)
Lower TDP (71W vs 80W)
Xeon E 2478 's Advantages
Released 4 years and 7 months late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (24MB vs 8MB)
More modern manufacturing process (10nm vs 14nm)