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Windows 11 causes discrete graphics cards to be locked at their base clock speed when idle
Testing has revealed that this is not a driver issue, but rather a problem caused by Windows updates. After comparing multiple versions, this issue was observed only in the latest version, 8246. Spec...
The update likely changed the default timeout for the “D3” (Device Sleep) state for PCI Express devices, particularly the discrete GPU. Instead of waiting an appropriate amount of time, it’s instructing the GPU to enter sleep mode within milliseconds of becoming idle.