AMD EPYC 9115 's Advantages
Released 6 years and 6 months late
Higher specification of memory (6000 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (64MB vs 12MB)
More modern manufacturing process (4nm vs 14nm)
Xeon E 2186M 's Advantages
Higher base frequency (2.9GHz vs 2.6GHz)
Lower TDP (45W vs 125W)