For those wondering how the AMD 3D V-Cache performance with the Ryzen 9 9950X3D is looking on Linux relative to Microsoft Windows, a few weeks back I carried out some comparison benchmarks of Windows 11 25H2 against Ubuntu Linux both the Ubuntu 24.04.3 LTS release and an Ubuntu 25.10 development build using both the AMD Ryzen 9 9950X and Ryzen 9 9950X3D processors.
When recently carrying out some Windows 11 25H2 benchmarks against Linux as well as fresh WSL2 benchmarks, I also took the opportunity to run some AMD Ryzen 9 9950X3D vs. 9950X CPU benchmarks on both Windows and Linux. Given the ongoing Linux kernel optimizations as well as Microsoft/AMD making driver improvements on the Windows side too, I was curious if one operating system was delivering more pronounced advantages over the other in the context of the 16-core desktop 3D V-Cache performance.
The same AMD Ryzen 9 9950X and 9950X3D CPUs at stock speeds, ASRock X870E Taichi motherboard, 2 x 16GB DDR5-6000 GSKILL memory, AMD Radeon RX 9070 graphics, 1TB CT1000T705SSD3 Crucial T705 NVMe SSD, and other hardware were all maintained the same for testing.
Windows 11 25H2 was with all available updates as of early September followed by running the benchmarks on Ubuntu 24.04.3 LTS with all SRUs as of the same point and then also a development build of Ubuntu 25.10 with the Linux 6.17 kernel for a leading-edge look at the Linux performance.
