AMD EPYC 7343 's Advantages
Higher base frequency (3.2GHz vs 3.15GHz)
Lower TDP (190W vs 400W)
AMD EPYC 9565 's Advantages
Released 3 years and 7 months late
Higher specification of memory (6000 vs 3200)
Newer PCIe version (5 vs 4)
Larger L3 cache size (384MB vs 128MB)
More modern manufacturing process (4nm vs 7nm)