For those curious about the performance implications of using DDR5 ECC memory with AMD Ryzen 7000 series 'Zen 4' processors, I ran some benchmarks with ECC memory with the Error Correction Code functionality enabled and then disabled for evaluating the impact.
ECC memory overhead impact with hardware the past number of years has typically been quite insignificant: typically 1~3% or even no statistical significance for many workloads.