OS: Windows XP with SP3, Windows Vista with SP2, or Windows 7 CPU: Intel Core 2 Duo (or equivalent) running at 1.8 GHz or greater; AMD Athlon 64 X2 (or equivalent) running at 1.8 GHz or greater RAM: 1 GB (1.5 GB Vista and Windows 7) Video: ATI Radeon HD 2600 Pro 256 MB; NVIDIA GeForce 7900 GS 256 MB cards Disc Drive: DVD ROM drive required Hard Drive: 7 GB Sound: Direct X 9.0c Compatible Sound Card Windows Experience Index: 4.5