AMD EPYC 9135 's Advantages
Released 3 years and 7 months late
Higher specification of memory (6000 vs 3200)
Newer PCIe version (5 vs 4)
Higher base frequency (3.65GHz vs 2GHz)
More modern manufacturing process (4nm vs 7nm)
Lower TDP (200W vs 240W)
AMD EPYC 7663 's Advantages
Larger L3 cache size (256MB vs 64MB)