[SOLVED] AS SSD Benchmark is slower in Windows 11 than in Windows 10

[deltapapa_01]

Hi,
I have a Force MP600 SSD running on a Ryzen 5 5600x. In Windows 10 I had a benchmark of over 8000 points, in Windows 11 just 5500 points.
The 4k-64Thrd write accesses in particular differ massively.
In Windows 10: 3206 MB / s, in Windows 11: 755 MB / s.
The other write and read accesses are roughly the same.
What can that be? Is that a Win11 problem with AMD CPUs?

WBR,
deltapapa

 

[alceryes]

Reboot your computer and wait a full 3+ minutes at the desktop before you test.
Try Crystal Disk Mark and ATTO as well. It could be an issue with just AS SSD.

 

[logainofhades]

It is an AMD and Win 11 issue.

https://www.tomshardware.com/news/amd-ryzen-windows-11-gaming-benchmarks-L3-cache-bug

View: https://www.youtube.com/watch?v=Mg5xJtmCZbI&t=2s