AMD EPYC 7773X "Milan-X" Performance Continues To Impress With Tremendous Opportunity For Large-Cache Server CPUs

One of the updated benchmarks since the original Milan-X testing was now incorporating OpenFOAM 9 rather than OpenFOAM 8 previously used in my benchmarks. With OpenFOAM 9 also comes the new "drivaerFastback" model used for benchmarking. With this big OpenFOAM update and the new input, this open-source computational fluid dynamics software continues to show the potential for significant advantages to MilanX for CFD workloads.

The EPYC 7773X in both 1P and 2P configurations was pulling less power than the (slower) Xeon Platinum 8380.

For OpenFoam 9 with the drivaerFastback automotive aerodynamics test case when moving to smaller mesh sizes that then in turn fit into the CPU cache more easily, the EPYC 7773X advantages are even more significant. With the small and medium mesh sizes, a single AMD EPYC 7773X was able to tango with dual Xeon Platinum 8380 processors.