AMD EPYC 7773X "Milan-X" Performance & Power Nearly Four Years Later
The open-source LuxCore renderer saw around a 7% improvement with the software updates over the past 44 months, excluding any software upgrades to the application/benchmark under test.
A 7% improvement thanks to software upgrades isn't bad. Exciting as well was looking at the CPU power consumption difference for the dual AMD EPYC 7773X configuration. During the brief periods of downtime during the run, the minimum power draw was much lower on the latest software compared to at launch: now 71 Watts minimum versus 151 Watts at launch. This is also still with the ACPI CPUFreq driver with AMD having not moved to amd_pstate for the older platforms pre-Genoa.
Blender 3.0 was also showing slightly faster render performance now versus at launch. Similar to the LuxCore data, the CPU power usage was bottoming out much lower than in 2022.
For some HPC benchmarks like MT-DGEMM there wasn't much in the way of overall performance differences but there was a pleasant difference with improved power efficiency.