Windows OS:Â Windows Vista SP2 or Windows 7 Processor:Â Intel Core2 Duo E8200 2.66 GHz or AMD Phenom X3 8750 2.4 GHz Memory:Â 2 GB RAM Graphics:Â Nvidia GeForce 8800GT 512 MB or ATI Radeon HD 3870 512 MB DirectX:Â Version 9.0c Network:Â Broadband Internet connection Hard Drive:Â 16 GB available space Sound Card:Â DirectX 9.0c-compatible