Minimum: Supported OS: Windows XP (32/64) or Windows Vista (32/64) Processor: Intel Pentium 2.8HT or AMD Athlon 2800+ Memory: 768MB/1GB for Vista Graphics: nVidia 6800GT (SM3) or ATI X800XT (SM2) w/ Latest applicable video drivers DirectX Version: DirectX 9.0 Sound: AC '97 or equivalent DirectX 9.0c compatible sound card Hard Drive: 12 GB Internet: Broadband connection (min upload 768K for hosting games)