AMD EPYC 9755 / 9575F / 9965 Benchmarks Show Dominating Performance
With the AMG HPC benchmark is one of the workloads where the MRDIMMs helped Granite Rapids a lot. The EPYC Zen 5 CPUs were matching the performance of the Xeon 6980P with DDR5-6400 memory but the MRDIMMs allowed for a significant lead in performance and in turn power efficiency.
But on a performance per dollar basis for the CPU list pricing, the 5th Gen EPYC processors come out ahead.
In the HPC benchmarks that weren't as memory bandwidth intensive, AMD EPYC Turin returned to delivering shattering performance and excellent power efficiency upgrades.
LAMMPS with the larger 20k Atoms model saw the Xeon 6980P delivering the best performance over the EPYC Turin CPUs tested but these Zen 5 server processors did lead with better performance-per-Watt.
The new AMD 5th Gen EPYC processors performed exceptionally well with NAMD. NAMD is another one of a few workloads still being investigated by Intel for Granite Rapids performance anomalies. With the official NAMD binaries they were able to reproduce lower performance on the Xeon 6980P and are investigating it more closely.
With the GROMACS molecular biology benchmark, the EPYC 9655 came in hust shy of the Xeon 6980P in the 2P testing but did better in the 1P tests. The EPYC 9755 2P did manage to squeeze just past the Xeon 6980P 2P performance. Very nice EPYC Zen 5 gains here and will be interesting to see how Turin does with future 3D V-Cache models.