Windows 7 users, Nvidia has something for you: a shiny new set of Microsoft-certified graphics drivers with support for DirectX 11 Compute Shader. The new drivers are available right now for both 32-bit versions and 64-bit versions of Windows 7.
Here's the list of improvements and additions, in Nvidia's words:
Adds WHQL support on Windows 7 for Microsoft’s new DirectX GPU Computing API: DirectCompute. Optimized for the latest PhysX gaming titles: Batman: Arkham Asylum and Darkest of Days. Installs PhysX System Software version 9.09.0814.
You can peruse detailed release notes here. In a press release announcing the new driver set, Nvidia also notes that Windows 7 users with SLI multi-GPU systems can expect a performance gain of as much as 14% over Vista in "top gaming titles." That might apply to the platform in general rather than this specific driver release, though.
Demos of DirectX 11 Compute Shader (or DirectCompute, as Nvidia calls it) in action are available through this page. In a way, DirectCompute is Microsoft's answer to OpenCL—a vendor-agnostic programming interface for general-purpose computing on graphics hardware. There are differences between the two approaches, though, as we learned when talking to the Khronos Group's president earlier this month.