AMD EPYC 7742 's Advantages
Larger L3 cache size (256MB vs 32MB)
AMD EPYC 4124P 's Advantages
Released 4 years and 9 months late
Higher specification of memory (DDR5-5200 vs DDR4-3200)
Newer PCIe version (5 vs 4)
Higher base frequency (3.8GHz vs 2.25GHz)
More modern manufacturing process (5nm vs 7nm)
Lower TDP (65W vs 225W)