Intel Xeon Gold 6426Y 's Advantages
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Newer PCIe version (5 vs 4)
Higher base frequency (2.5GHz vs 2.3GHz)
Lower TDP (185W vs 225W)
AMD EPYC 7643P 's Advantages
Released 8 months late
Larger L3 cache size (256MB vs 37.5MB)