These CPUs are different but have almost the same single-core performance - Epyc 7571 has 32 cores 2.3 GHz each, while Xeon E5-2680 has 14 2.4 GHz cores. EPYC - 8 channel DDR4-2666 ECC memory vs. 4 channels DDR4-2400 ECC for Xeon. Xeon supports AES-NI instructions. Xeon released Q1/2016 VS EPYC introduction date was November 2018.