// d3dkmthk.h

typedef struct _D3DKMT_ADAPTER_PERFDATACAPS {
  UINT32                   PhysicalAdapterIndex;
  D3DKMT_ALIGN64 ULONGLONG MaxMemoryBandwidth;
  D3DKMT_ALIGN64 ULONGLONG MaxPCIEBandwidth;
  ULONG                    MaxFanRPM;
  ULONG                    TemperatureMax;
  ULONG                    TemperatureWarning;
} D3DKMT_ADAPTER_PERFDATACAPS;
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Windows Driver Kit DDI reference (ns-d3dkmthk-_d3dkmt_adapter_perfdatacaps)

D3DKMT_ADAPTER_PERFDATACAPS structure

Description

The D3DKMT_ADAPTER_PERFDATACAPS structure represents data capabilities that are static and queried once per GPU during initialization.

Members

`PhysicalAdapterIndex`

The physical adapter index in the LDA (linked display adapter) chain.

`MaxMemoryBandwidth`

Max memory bandwidth in bytes for 1 second.

`MaxPCIEBandwidth`

Max PCIE bandwidth in bytes for 1 second.

`MaxFanRPM`

The max fan rpm of the main fan.

`TemperatureMax`

The max temperature before damage levels occur in deci Celsius. 1 = 0.1C.

`TemperatureWarning`

The temperature level where temperature based throttling begins in deci Celsius. 1 = 0.1C.

D3DKMT_ADAPTER_PERFDATACAPS - NtDoc