Windows 11 vs. Ubuntu 24.04 Linux Performance For The AMD Ryzen 9 9950X
The LuxCoreRenderer is open-source and provides official binaries on both Windows and Linux platforms. With the DLSC scene, going from the Ryzen 9 7950X to 9950X on Windows 11 meant a ~5% generational uplift and that was roughly the same as observed on Ubuntu 24.04 LTS. But the performance on Ubuntu Linux was faster for both the Ryzen 9 7950X and 9950X processors.
With other LuxCoreRender scenes there was similar generational improvements to the 7950X to 9950X on both Windows 11 and Ubuntu 24.04 LTS, but the Ubuntu performance continued running faster for raw performance on both these Zen 4 and Zen 5 processors.
With Intel's Embree ray-tracing kernels using the Intel ISPC built version on each OS, there was around an 8% performance uplift going from the 7950X to 9950X on each operating system. But the Ubuntu Linux performance continued to lead in raw performance to the extent of the Ryzen 9 7950X on Linux was similar to the Ryzen 9 9950X performance on Windows 11.
With the "Asian Dragon" scene being rendered by Embree binaries on each OS, under Linux was a greater generational uplift. Going from the Ryzen 9 7950X to 9950X on Windows was a 13.6% improvement but under Linux that was a 18.3% improvement while the Linux performance was also faster than Windows overall.
The greater generational uplift on Ubuntu 24.04 LTS going from the Ryzen 9 7950X to 9950X was also observed on another render scene with Intel Embree.