If you're into overclocking, you'll definitely want to pick up the next release of ATI Tray Tools
, the most popular tweaking utility for RADEON based cards. This is 3rd party software, so make sure you know what you are doing first. Unfortunately for those of you using the absolute newest cards, some of the R5xx lines (1300/1600/1800/1900) do not work with this release, with the author citing lack of documentation. Aside from that, a host of new features have been added, and many bug fixes. If you're using a Radeon, it's definitely worth a try. ATI
does not support this software, however.