Min version	7		8 Pre RTM		8 Pre RTM	8		10 Pre RTM	10 Pre RTM
Max version	7 SP1					8.1 Update 1			10 TH2
Architecture	x86	x64	x86	x64	x86	x86	x64	x64	x86	x64
x86 offset offset:bitpos	Field Name										x64 offset offset:bitpos
0x0000	struct _KPRCB * Prcb										0x0000
0x0004	uintptr_t PerfContext										0x0008
0x0008	unsigned long PercentageCap				unsigned long PlatformCap			unsigned long NodeCap	unsigned long ProcCap		0x0010
0x000C	unsigned long ThermalCap							unsigned long NodeFloor	unsigned long ProcFloor		0x0014
0x0010	unsigned long TargetFrequency				unsigned long LimitReasons			unsigned long ProcCap	unsigned long PlatformCap		0x0018
0x0014	unsigned long AcumulatedFullFrequency				unsigned long TargetPercent			unsigned long ProcFloor	unsigned long ThermalCap		0x001C
0x0018	unsigned long AcumulatedZeroFrequency				unsigned long DesiredPercent	uint64_t PlatformCapStartTime		unsigned long PlatformCap	unsigned long LimitReasons		0x0020
0x001C	unsigned long FrequencyHistoryTotal		unsigned long FrequencySensitivity		unsigned long SelectedPercent			unsigned long ThermalCap			0x0024
0x0020	unsigned long AverageFrequency				unsigned long SelectedFrequency	unsigned long TargetPercent		unsigned long LimitReasons	uint64_t PlatformCapStartTime		0x0028
0x0024					unsigned long PreviousFrequency	unsigned long DesiredPercent					0x002C
0x0028					unsigned long PreviousPercent	unsigned long SelectedPercent		uint64_t PlatformCapStartTime	unsigned long TargetPercent		0x0030
0x002C					unsigned long LatestFrequencyPercent	unsigned long SelectedFrequency			unsigned long SelectedPercent		0x0034
0x0030					unsigned long FrequencySensitivity	unsigned long PreviousFrequency		unsigned long TargetPercent	unsigned long SelectedFrequency		0x0038
0x0034						unsigned long PreviousPercent		unsigned long SelectedPercent	unsigned long PreviousFrequency		0x003C
0x0038					uint64_t SelectedState	unsigned long LatestFrequencyPercent		unsigned long SelectedFrequency	unsigned long PreviousPercent		0x0040
0x003C								unsigned long PreviousFrequency	unsigned long LatestFrequencyPercent		0x0044
0x0040					uint8_t Force	uint64_t SelectedState	uint64_t SelectedState	unsigned long PreviousPercent	uint64_t SelectedState	uint64_t SelectedState	0x0048
								unsigned long LatestFrequencyPercent			0x004C
0x0048						uint8_t Force		uint64_t SelectedState	uint8_t Force		0x0050