Have you changed your CCC settings or upgraded your drivers lately? What speed is the card and CPU running at while playing?
I have the CCC Driver at 12.11 Beta 7.For the clock speed, when i idle in the main lobby, my i5 3470 hits 3392.28mhz. (I had it turbo boost).
For the GPU, it goes up and down when idling too at the game lobby (BO2).
Core and Memory Clock:
When browsing the net/idling at the main menu, goes up, then in a split second back down and back up again. (MSI Afterburner).