AMD EPYC 9684X 's Advantages
Released 4 years and 1 months late
Higher specification of memory (DDR5-4800 vs DDR4-2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (1152MB vs 16MB)
Xeon E 2278G 's Advantages
Higher base frequency (3.4GHz vs 2.55GHz)
Lower TDP (95W vs 400W)