I'm deciding whether to stay on Windows 10 or upgrade to Windows 11, mainly based on gaming performance. My system has a Ryzen 7 5700X3D, Radeon RX 6650 XT, 16GB of DDR4-3600 memory, and a Kingston NVMe SSD. I've heard that Windows 11 may offer better scheduling and optimization for X3D processors, while Windows 10 uses less RAM at idle. Since I only have 16GB, I'm wondering whether Windows 11's higher memory usage leaves less available for games and could affect average FPS, 1% lows, stuttering, or general smoothness. For a system like this, is Windows 11 the better choice for gaming, and does its additional RAM usage actually matter once a game is running? I'd especially appreciate experiences from people using a 5700X3D, 5800X3D, or another X3D processor with 16GB of memory.
4 Answers
I’d choose Windows 11. Windows 10 is no longer receiving normal security support, and the extra RAM shown at idle usually isn’t permanently unavailable to games. Windows will reclaim cached memory when an application needs it, so idle usage by itself isn’t a good indicator of gaming performance.
The practical answer is Windows 11 unless you have a specific compatibility or workflow reason to stay on Windows 10. The idle-memory difference is generally negligible for FPS, but 16GB can cause stutters in some demanding games when combined with browsers, launchers, or other background programs. If you see that happening, moving to 32GB will help more than switching between the two operating systems.
For gaming, Windows 11 should be at least as good overall on a 5700X3D, and any scheduling improvements are a bonus. The difference probably won’t transform your FPS, though. Your bigger limitation in some newer games is likely to be 16GB of system memory rather than the operating system. Watch actual memory usage and page-file activity while playing instead of comparing idle RAM numbers.
If you strongly dislike Windows 11, a supported Windows 10 installation may still run your games perfectly well, but the security-support situation makes it harder to recommend long term. You can also reduce unnecessary startup apps and background services in Windows 11, though aggressive debloating usually isn’t needed.

That makes sense. I was treating idle RAM usage as if it were permanently reserved, but checking memory pressure while a game is running is probably more useful.