Opteron 4340 's Advantages
Higher base frequency (3.5GHz vs 2.8GHz)
Lower TDP (95W vs 240W)
AMD EPYC 7473X 's Advantages
Released 9 years and 3 months late
Higher specification of memory (3200 vs 3)
Larger L3 cache size (768MB vs 8MB)
More modern manufacturing process (7nm vs 32nm)