AMD today released the latest version of their ATI video driver, Catalyst 9.3. The key addition with this release is official support for Windows 7, in the form of a unified graphics driver for Windows 7 and Windows Vista. As part of supporting Windows 7, Catalyst 9.3 supports WDDM (Windows Display Driver Model) 1.1 for all ATI Radeon HD 4000, HD 3000 and HD 2000 series of graphics cards. According to AMD, "this new WDDM 1.1 support utilizes DirectX 10 rather than DirectX 9 and can cut down your GPU memory usage by half when opening up multiple windows thereby enabling increased performance." AMD have said the driver brings performance benefits in several cases where framerates are CPU limited and using ATI Stream technology, owners of the ATI Radeon HD 4000 Series, ATI Radeon HD 3000 Series, and ATI Radeon HD 2000 Series of graphics accelerators will see a performance boost in their Folding@Home scores when running the latest Folding@Home client. AMD only documented one performance improvement in the release notes: Lost Planet: Colonies gains up to 20% on 4800 series products, and up to 50% on 4600, 4500 and 4300 series products DOWNLOAD: ATI Catalyst version 9.3 for Windows XP/Vista/7 (32/64-bit versions) Source: AMD Game!