Opteron 43CX EE 's Advantages
Higher base frequency (2.2GHz vs 2GHz)
Lower TDP (35W vs 240W)
AMD EPYC 7663 's Advantages
Released 8 years and 3 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Larger L3 cache size (256MB vs 8MB)
More modern manufacturing process (7nm vs 32nm)