I notice some weird behaviour, could be my card though. In games my overclock reduces to the base clocks regardless of the core settings I made, the boost never stays for long. But with the ccc overdrive window open, my clocks stay at whatever I set them, no downclocking. Even in furmark it stays at the clocks I set them to. Seems like the power control settings which are at 20% don't seem to work anymore when I close the overdrive window.