CS2 FPS Benchmark : Windows 11 Stock vs Custom OS Playbooks (FSOS-X and AtlasOS) Benchmarked using @CapFrameX on the Dust II FPS Benchmark map. Each OS was tested 3 times and the results shown are the aggregated averages. Average FPS: FSOS-X: 728.1 FPS 🏆 Stock W11: 718.5 FPS AtlasOS: 668.4 FPS 1% Low Avg: AtlasOS: 320.9 FPS 🏆 FSOS-X: 304.5 FPS Stock W11: 274.9 FPS Process Count: FSOS-X: 90 AtlasOS: 96 Stock W11: 147 While FSOS-X got the highest Avg. FPS, AtlasOS improved the 1% Lows Avg by 16.73% 🔼 compared to Stock Windows 11. For some reason, AtlasOS got the worst Avg. FPS in these runs compared to FSOS-X or W11 Stock. FSOS-X also had the fewest background processes with 90 running compared to 147 on Stock Windows 11. Note: I kept Windows Defender and all other security features enabled during testing. I don't recommend disabling them just to gain a few extra frames. PC Specs: Ryzen 7 9800X3D RTX 5070 32GB DDR5 CL30 6000MHz NVIDIA Drivers 610.74 Windows 11 25H2 HAGS, Game Mode, Resizable BAR: Enabled CS2 Video Settings: 1920x1080 Reflex Enabled MSAA 4x For each benchmark, I performed a fresh installation of Windows 11 while keeping the same NVIDIA driver version. At the time of testing, only CS2 and CapFrameX were installed to minimize background variables. In total, I did 3 fresh W11 installations to complete this benchmark. And as always, results may vary from system to system.