ATITool is an overclocking utility designed for ATI video cards.
Design target is to write a light-weight application for the enthusiast - so no questionable registry tweaks. Sorry.

Main Features

• No limits overclocking.
• Finding maximum core and memory overclock by rendering into a Direct3D window and scanning the output for visual artifacts.
• Temperature monitoring and fan speed control (on supported cards)
• Removal of Catalyst overclocking lock for 9000/9200/9550/9600 series.
• Artifact scanning mode for non-ATI cards - use together with a 3rd party overclocking utility.
• Loading a predefined clock profile on Application/Windows startup.
• Hotkeys that can be used any time to load clocks from a profile.
• 3D application detection (Direct3D 8, Direct3D 9, OpenGL) to overclock your video card only when required.
• Gamma control