OS: Windows® XP SP 3 (32-64 bits) / Windows Vista® (32-64 bits) / Windows 7® (32-64 bits) CPU: (Minimum) Intel Core 2 Duo @ 2.66 GHz or AMD equivalent (Recommended)Intel Core i5 @ 2.66 GHz or AMD equivalent Memory: (Minimum) 2 GB RAM (Windows XP) / 3 GB (Windows Vista and Windows 7) (Recommended) 3 GB for Windows ® XP, 4 GB for Vista / Windows ® 7 Video Memory: (Minimum)NVIDIA GeForce GT220 (512MB) / ATI Radeon HD 2600 XT (512MB) (Recommended)NVIDIA GeForce GTX 460 (1GB) / ATI Radeon HD 5750 (1GB) HDD : 8 GB of free Hard Drive Space