ATITool is a free overclocking utility for ATI and NVIDIA cards and will only work on Microsoft Windows 2000/XP/2003 with Vista support partially ready. The program runs minimized on the taskbar and displays the temperature of the GPU. In versions earlier than .24, NVIDIA cards are not supported. Current stable version is .26. As of November 28, 2007, Beta4 .27 was the latest version released. As of October 19, 2010, the website only lists Beta3 .27 and there has been no release since then.

This utility will help a user overclock their video card in a semi-automatic fashion. See external links for a guide to its use.

Main Features

• 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 a video card only when required.

External links

• Official site
• Latest Betas (at Softpedia)
• Simple overclocking guide for ATITool