The AMD OverDrive Utility is designed to allow you to maximize the capability, flexibility, and adjustability of the AMD chipset products. It also allows users to tune parameters to ensure system stability, optimize performance, and control cooling/acoustic characteristics.

Features:
- Maximum control for massive headroom Personalize your experience with state-of-the-art real-time overclocking. Used by world record setting overclockers across the globe, AMD OverDrive™ gives you unprecedented control over your processor, memory and chipset to push the performance envelope further than ever before.
- AMD Black Edition Memory Profiles Achieve optimum high speed DDR3 performance with pre-tuned memory profiles. Open up bandwidth and overclock your memory for even more performance.
- AMD Smart Profiles Tune performance when you run the applications you use most. Set optimum affinity and performance based on our default profiles or customize your own.
- Customizable AutoClockMore options for experienced users to automatically tune their PC
- Fan ControlEnhanced support for monitoring your PC and taking control
- Ready to use with Microsoft Windows 7.
Download: AMD OverDrive Utility.
I have not tried this utility!
Do note the word of caution on the AMD page : THIS UTILITY MAY DISABLE SECURITY / ANTIVIRUS SOFTWARE, OR ADVERSELY AFFECT YOUR SYSTEM. REVIEW ACCOMPANYING DOCUMENTATION CAREFULLY BEFORE INSTALLING. AMD’S PRODUCT WARRANTY DOES NOT COVER DAMAGES CAUSED BY OVERCLOCKING, EVEN WHEN ENABLED VIA AMD SOFTWARE.
Is PC overclocking really worth it, may also interest you.
If you have liked this post, you might want to check out some more, on topics like AMD, Hardware, Overclock.