So I've got hd radeon 7970 gpu and an fx-8350 cpu. This is my power supply: XFX ProSeries Core Edition 550W PSU I want to overclock the gpu, but I am very uncertain for how far I can overclock it as I dont know if the Powersupply will hold. Will it? And how much could I push for overclocking the 7970 which has a base core clock on 925 mhz? Thanks for help. Is there any way to do a super safe overclock so you'll know if it hits either max voltage/degrees? edit: Overclocked gpu to 1070 mhz coreclock and 1575mhz memory. Dont know why I couldnt achieve a higher coreclock, didnt work to increase powerlimit to 20%, and I couldnt figure out how to change the voltage to higher numbers, probably locked I guess?