thanks, so I can move 1250Mhz to 1125Mhz in the GUI of AMDOverdriveCtrl and then run the -b profile in terminal, then use aticonfig to set to gpu speed, 1125Mhz? How significant is this reduction overall for temperature? Does this limitation also exist in Windows?

May I ask what is the ideal voltage for low mid high profiles in AMDOverdriveCtrl?

Many thanks again for any help!