AMD Ryzen 9 7900X Performance With ECC DDR5 Memory

In total I ran 242 benchmarks with this ECC enabled/disabled comparison on the AMD Ryzen 9 7900X processor with ASRock Rack motherboard.

Taking the geometric mean of all 242 results showed no measurable difference to the system performance when ECC was enabled for these Crucial DDR5-4800 UDIMMs.

When plotting the benchmarks with a statistically significant difference, there was just a handful of benchmarks within the 2~3% faster range when ECC was disabled. As shown earlier, the Graph500 HPC benchmark was the outlier with a ~8% difference toggling ECC. PostgreSQL and Hadoop were among the few real-world workloads with the 2~3% difference, which is a small price to pay for the benefits of ECC.

It's great that the desktop AMD Ryzen processors continue to support ECC memory while still it's ultimately up to the motherboard vendors whether ECC is to be supported. We're at least seeing more AMD Ryzen motherboards come to market with a server focus which in turn is great for allowing more motherboard options with ECC memory support. My testing with the ASRock Rack 1U4LW-B650/2L2T 1U server (ASRockRack B650D4U-2L2T/BCM motherboard) continues working out very well and hasn't yielded any platform troubles with all of my hundreds of hours of Linux testing thus far.