CPU: 2.8 GHz (3.0 GHz or higher for Vista) RAM: 512 MB (Windows Vista requires 1GB RAM) VGA: 128 MB with Pixel Shader 2.0 (AGP and PCIe only)* DX: DirectX 9.0c OS: Windows XP / Vista with latest service pack installed HDD: 8.1 GB Network: To play online a network card is required for broadband connectivity Note: *Supported chipsets: NVIDIA GeForce FX 5950 greater (GeForce MX series not supported); ATI Radeon 9500 or greater. Laptop versions of these chipsets may work but are not supported. Updates to your video and sound card drivers may be required.