Opteron 3320 EE 's Advantages
Lower TDP (25W vs 200W)
AMD EPYC 9255 's Advantages
Released 11 years and 10 months late
Higher specification of memory (6000 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (3.25GHz vs 1.9GHz)
Larger L3 cache size (128MB vs 8MB)
More modern manufacturing process (4nm vs 32nm)