Opteron 6308 's Advantages
Higher base frequency (3.5GHz vs 2.6GHz)
Lower TDP (115W vs 125W)
AMD EPYC 9115 's Advantages
Released 11 years and 11 months late
Higher specification of memory (6000 vs 1866)
Newer PCIe version (5 vs 2)
Larger L3 cache size (64MB vs 8MB)
More modern manufacturing process (4nm vs 32nm)