Running The AMD EPYC 9754 "Bergamo" CPUs With A 320W cTDP To Enhance Power Efficiency

The new AMD EPYC Bergamo and Genoa-X processors have been very fascinating in the lab from the performance angle and the many different features and knobs provided by these new high-end server processors focused on dense cloud and energy-efficient deployments and HPC/AI, respectively. With Bergamo the flagship AMD EPYC 9754 provides 128 cores with SMT and the Zen 4C cores still boast AVX-512. Another nifty aspect on this high core count CPU catering to cloud service providers is the adjustable TDP from 320 to Watts. Prior Phoronix benchmarks have looked at the default 360 Watt performance and the 400W at the high-end with power determinism mode while today's article is looking at the efficiency gains made possible by pulling back to a 320W cTDP.