Building on 3DMark05 as a foundation, Futuremark improved the core 3D engine, adding more complex ShaderModel 2.0 tests, stunning High Dynamic Range (HDR) ShaderModel 3.0 tests, and overall enhanced the product with substantially higher polygonal counts expected to be found in games two years into the future. Even with the addition of HDR/ShaderModel 3.0 tests, 3DMark06 still enables ShaderModel 2.0 compliant graphics card owners to run most of the benchmark and get a fully comparable 3DMark score. With these demanding new DirectX 9 implementations, 3DMark06's four graphics tests measure performance of the most advanced hardware while showing visually the compelling advantages of these new shader types.
http://futuremark.com/download/?3dmark06.shtml
Yes, it is really 576MB in size!
Minimum System Recommendations
* Intel® or AMD® compatible processor 2.5GHz or higher
* DirectX® 9 compatible graphics adapter with Pixel Shader 2.0 support or later, and graphics memory of 256 MB minimum*
* 1GB of system RAM or more - 1.5GB of free hard disk space
* Windows® XP 32bit operating system with latest Service Packs and updates installed
* DirectX® 9.0c December 2005 or later
* Microsoft Excel® 2003 or XP for some 3DMark functionality
* Microsoft Internet Explorer 6 for some 3DMark functionality
* To run the HDR/SM3.0 graphics tests, a DirectX 9 compatible graphics adapter with support for Pixel Shader 3.0, 16 bit floating point textures and 16 bit floating point blending is required.