Minimum system requirements
Processor: 2.4 GHz (single core)
RAM: 512 MB in Windows XP or 1 GB in Windows Vista
Video Card: GeForce 6600 or better, ATI Radeon 9800 Pro or better, with support for Shader 2.0, with embedded memory of 128 MB, with support for DirectX 9.0c
Sound: with support for DirectX 9.0c

Recommended system requirements
Processor: 3.2 GHz (single core) or 2.4 GHz (dual core)
RAM: 1 GB (XP) or 2GB (Vista)
Video Card: GeForce 7800 or better, ATI Radeon x1800 or better with Shader 2.0 support, with built-in memory, 256 MB, with support for DirectX 9.0c
Sound: with support for DirectX 9.0c