Minimum system requirements
Windows Vista, 7, 8 (32- or 64-bit) and DirectX 10.0
Intel Core 2 Duo or AMD Athlon II processor
1GB RAM
NVIDIA Geforce 8xxx or ATI Radeon HD 2xxx with Shader Model 4.0 support
All available system updates must be installed.

Recommended system requirements
Windows Vista, 7, 8 (32- or 64-bit) and DirectX 10.0
Intel Core i7 or AMD Phenom processor
2 GB RAM
NVIDIA Geforce GTX 2xx or ATI Radeon HD 4xxx with Shader Model 4.0 support