RBE is a tool which helps you over-/underclocking and tuning your recent ATI video card. Unlike other programs as Rivatuner for example, RBE will provide a modified version of your video card's original BIOS that you can flash upon your video card.
There is no installation required. Just download the RBE.exe and run it. There is just that one single file. No administrative privileges are required to run RBE, whether you use Windows XP or Vista.
* Added 58x0 and 5970 GPU voltage control. I'd like to express my gratitude to VuurVOS who made this possible.
* Added memory voltage control where available (i.e. all cards that utilize a VT1165 in order to control memory voltage, such as 4890, 5870 and 5970 [as far as I know]).
* Added GPU voltage control for cards utilizing a L6788A chip. Most 4770s and 5770s use them. Hey, better late than never! :-) Unfortunately, 5670 and 5750 reference design cards can not be supported because their UP6201 chip does not support external programming.
* Fixed subvendor-display on 5xx0 cards.
Tools and Utilities
Product page: here