AMD EPYC 7642 's Advantages
Higher base frequency (2.4GHz vs 1.9GHz)
Larger L3 cache size (256MB vs 112.5MB)
Lower TDP (225W vs 350W)
Intel Xeon Max 9480 's Advantages
Released 3 years and 5 months late
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Newer PCIe version (5 vs 4)