AMD GPU Clock Tool 0.9.8 with Radeon HD 4800 series support
 

AMD GPU Clock Tool 0.9.8 is the latest version of the overclocking tool used internally by AMD. It now supports the latest generation of graphics cards from AMD/ATI, also known as the Radeon HD 4800 series. This tool has now been posted over at overclocking site overclex.net and it will let you go beyond the rather meager options and settings available with the Catalyst Control Center. The tool looks pretty much like it always has so if you've used any of the prior version you should be set to go. (src: NordicHardware)

http://www.overclex.net/forum/viewto...d=22490#p22490