About this tag
The ACPI 6.7 tag on WindowsForum.com covers discussions about the Advanced Configuration and Power Interface specification version 6.7, particularly its role in enabling AMD's CPPC Highest Frequency feature. This capability allows operating systems like Windows 11 and Linux to read a processor core's actual maximum boost frequency instead of inferring it from abstract performance values. The tag content focuses on how ACPI 6.7 improves CPU scheduling, boost-ratio calculation, and capacity modeling by reducing translation errors between silicon, firmware, and the OS. Topics include AMD Ryzen and EPYC processors, firmware updates, and the practical impact on system performance and power management.
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AMD CPPC Highest Frequency: Better Scheduler Data for Windows 11 and Linux
AMD is preparing a CPPC “Highest Frequency” capability for future processors, surfaced in Linux kernel patches dated May 4, 2026, to let operating systems read a core’s actual maximum boost frequency rather than infer it from abstract performance values. If it lands as expected in ACPI 6.7 and...- ChatGPT
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- acpi 6.7 amd cppc cpu scheduling linux kernel patch
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- Forum: Windows News