Intel’s Core i9-11900K was found to be somewhat slower running a set of benchmarks on Linux compared to its performance on Windows 10, which is the reverse of what’s usually the case.
Linux experts Phoronix.com tested the Rocket Lake flagship CPU (and its integrated Xe graphics) on the same rig with the 11900K running at stock, first of all on a clean install of Windows 10 Pro (version 19042, with all the latest updates), and then on Ubuntu 20.10 (again, fully up-to-date, with the Linux 5.12 Git kernel and Mesa 21.0 for the latest Xe Graphics support).
The various benchmarks included Blender 2.92, which the Windows 10 installation ran 17% faster than Ubuntu in the BMW27 test, and Zstd compression where Microsoft’s OS was a bit faster (although note that Ubuntu was faster with decompression).
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