VkGpaDeviceGetClockInfoAMD(3)

# VkGpaDeviceGetClockInfoAMD(3) Manual Page

## Name

VkGpaDeviceGetClockInfoAMD - Structure containing returned clock ratios or clock mode to set

## C Specification

The `VkGpaDeviceGetClockInfoAMD` structure is defined as:

    // Provided by VK_AMD_gpa_interface
    typedef struct VkGpaDeviceGetClockInfoAMD {
        VkStructureType    sType;
        void*              pNext;
        float              memoryClockRatioToPeak;
        float              engineClockRatioToPeak;
        uint32_t           memoryClockFrequency;
        uint32_t           engineClockFrequency;
    } VkGpaDeviceGetClockInfoAMD;

## Members

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

- `memoryClockRatioToPeak` is the returned ratio of the current memory clock to the maximum memory clock.

- `engineClockRatioToPeak` is the returned ratio of the current engine clock to the maximum engine clock.

- `memoryClockFrequency` is the current memory clock frequency in MHz.

- `engineClockFrequency` is the current engine clock frequency in MHz.

## Description

Valid Usage (Implicit)

- VUID-VkGpaDeviceGetClockInfoAMD-sType-sType
  `sType` must be VK_STRUCTURE_TYPE_GPA_DEVICE_GET_CLOCK_INFO_AMD

- VUID-VkGpaDeviceGetClockInfoAMD-pNext-pNext
  `pNext` must be `NULL`

## See Also

VK_AMD_gpa_interface, VkStructureType, vkGetGpaDeviceClockInfoAMD

## Document Notes

For more information, see the Vulkan Specification.

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0