RBE - Radeon BIOS Editor is a portable utility that enables you to modify several ATI BIOS files parameters.

Most users are looking for a specific scope for modifications; fans and clock settings as these tend to be essential to a majority of users. But this utility is designed to do more than that. It will balance the BIOS file's checksum, allows modification of Overdrive settings, and enables superior PowerPlay functionality on some video cards. It also includes a CCC profile editor that will allow you to tap into hidden features of the CCC and much more. To use this utility you are required to load a valid BIOS file before attempting any modifications. Once that is completed you can then modify clock settings and set values for GPU (MHz), RAM (MHz) and voltage (V) to suit your specific needs. There is also an included clock tuning wizard to help through the process.

RBE - Radeon BIOS Editor will be of significant use not only to gamers but to any user wishing to tweak their system in a user-friendly manner. The UI is simple to navigate through and everything needed is displayed prominently. And as mentioned above, it is portable so you can keep on a USB flash drive for easy deployment on any machine you are on.