ATI Tray Tools has Shared Memory with full information about currect GPU/Memory speed,
temperatures and FAN Speed. Current Settings for Direct3D AA/AF, OpenGL AA/AF.
Current mode (2d/3d), 
Here is a structure:

Borland Delphi:

type     TATTData=packed record
         CurGPU:dword;      //Current GPU Speed
         CurMEM:dword;      //Current MEM Speed
         isGameActive:dword; //If game from profile is active, this field will be 1 or 0 if not.
         is3DActive:dword;  //1=3D mode, 0=2D mode
         isTempMonSupported:dword; //1 - if temperature monitoring supported by ATT
         GPUTemp:dword;            //GPU Temperature 
         ENVTemp:dword;            //ENV Temperature 
         FanDuty:dword;            //FAN Duty
         MAXGpuTemp:dword;         //MAX GPU Temperature (only if Hardware Monitor enabled!)
         MINGpuTemp:dword;         //MIN GPU Temperature (only if Hardware Monitor enabled!)
         MAXEnvTemp:dword;         //MAX ENV Temperature (only if Hardware Monitor enabled!)
         MINEnvTemp:dword;         //MIN ENV Temperature (only if Hardware Monitor enabled!)
                                   //3d settings
         CurD3DAA:dword;           //Direct3D Antialiasing value
         CurD3DAF:dword;           //Direct3D Anisotropy value
         CurOGLAA:dword;           //OpenGL Antialiasing value
         CurOGLAF:dword;           //OpenGL Anisotropy value
         //FPS
         IsActive:dword;           //is 3d application active?
         CurFPS:dword;             //Current FPS
       	 
	 FreeVideo:dword;
         FreeTexture:dword;
         Cur3DApi:dword;
         MemUsed:dword;

	 

         end;

C++:


typedef struct tagTATTData {
         DWORD CurGPU;      //Current GPU Speed
         DWORD CurMEM;      //Current MEM Speed
         DWORD isGameActive; //If game from profile is active, this field will be 1 or 0 if not.
         DWORD is3DActive;  //1=3D mode, 0=2D mode
         
         DWORD isTempMonSupported; //1 - if temperature monitoring supported by ATT
         DWORD GPUTemp;            //GPU Temperature 
         DWORD ENVTemp;            //ENV Temperature 
         DWORD FanDuty;            //FAN Duty
         
         DWORD MAXGpuTemp;         //MAX GPU Temperature
         DWORD MINGpuTemp;         //MIN GPU Temperature
         DWORD MAXEnvTemp;         //MAX ENV Temperature
         DWORD MINEnvTemp;         //MIN ENV Temperature
                                   //3d settings
         DWORD CurD3DAA;           //Direct3D Antialiasing value
         DWORD CurD3DAF;           //Direct3D Anisotropy value
         DWORD CurOGLAA;           //OpenGL Antialiasing value
         DWORD CurOGLAF;           //OpenGL Anisotropy value
         DWORD IsActive;           //is 3d application active
         DWORD CurFPS;                     // current FPS

         DWORD FreeVideo;  //Free Video Memory
	 DWORD FreeTexture;  //Free Texture Memory
         DWORD Cur3DApi;    //Current API used in applciation
			// 0 - OpenGL
			// 1 - Direct3D8
			// 2 - Direct3D9
			// 3 - DirectDraw
			// 4 - Direct3Dx (old direct3d api)
			// 5 - Video Overlay
			// -1 - No active rendering application
         DWORD MemUsed;


} TATTData, *PATTData;