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Microsoft is preparing to ship Windows 11 25H2 as their newest incremental update to their operating system. Windows 11 25H2 is currently available via their preview channel in advance of the formal public release in October. With Canonical also putting the finishing touches on their Ubuntu 25.10 release also due for a stable release in October, here are some benchmarks looking at how those competing operating systems are fairing in various CPU benchmarks on the same hardware.

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With both Windows 11 25H2 and Ubuntu 25.10 on the way, it's a good time for benchmarking to see how these competing platforms are performing. For good measure are also baseline tests on Windows 11 24H2 as well as on Ubuntu 24.04.3 LTS for that current long-term support release of Ubuntu Linux.

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Given the popularity of the AMD Ryzen 9 9900 series among enthusiasts/creators, this round of testing was using an AMD Ryzen 9 9950X 16-core desktop. The same hardware was used for all of the testing with the Ryzen 9 9950X at stock speeds, 2 x 16GB DDR5-6000 memory, 1TB Crucial T705 PCIe 5 NVMe SSD (CT1000T705SSD3), and AMD Radeon RX 9070 graphics. The graphics performance though isn't the focus of today's testing but rather the CPU side performance. Separate articles will be providing a fresh look at the Windows vs. Linux graphics performance.

Clean installs of the different operating systems were carried out and each OS tested at their respective performance/power defaults and other stock settings.



[1] https://www.phoronix.com/image-viewer.php?id=windows-11-25h2-ubuntu-2510&image=windows_11_25h2_1_lrg

[2] https://www.phoronix.com/image-viewer.php?id=windows-11-25h2-ubuntu-2510&image=windows_11_25h2_2_lrg

[3] https://www.phoronix.com/image-viewer.php?id=windows-11-25h2-ubuntu-2510&image=windows_11_25h2_4_lrg