AMD EPYC Embedded 9124's Advantages
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Newer PCIe version (5 vs 4)
Higher base frequency (3GHz vs 2GHz)
More modern manufacturing process (5nm vs 7nm)
Lower TDP (200W vs 240W)
AMD EPYC 7663P's Advantages
Released 6 months late
Larger L3 cache size (256MB vs 64MB)