Opteron 6344 's Advantages
Higher base frequency (2.6GHz vs 2.4GHz)
Lower TDP (115W vs 130W)
AMD EPYC 7303P 's Advantages
Released 10 years and 10 months late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 2)
Larger L3 cache size (64MB vs 8MB)
More modern manufacturing process (7nm vs 32nm)