AMD EPYC Embedded 3251 's Advantages
Higher base frequency (2.5GHz vs 1.8GHz)
Lower TDP (55W vs 185W)
Intel Xeon Gold 6421N 's Advantages
Released 4 years and 11 months late
Higher specification of memory (DDR5-4400 vs DDR4-2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (60MB vs 16MB)