I am trying to Overclock my AMD Radeon HD 7660G. I want to get a bit more performance while maintaining good temperatures within my laptop. When I go to OC it using AMD Overdrive, there are 2 things that it says. It says IGP and then the 2 options are Target Speed and Current Speed. My Target Speed is at 685 MHz and my Current Speed stays at around 335 but can jump to 496 and 685 for about half a second. I do not know what settings to amp to get my OC done but I need help!