Minimum: OS:Microsoft® Windows® XP / Vista / 7 Processor:AMD Athlon 64 2800+ @ 1.8 Ghz and Intel Pentium IV @ 2.8 Ghz Memory:1 GB RAM Graphics:Graphics Card with 128 MB of RAM DirectX®:9.0 Hard Drive:500 MB HD space Sound:DirectX 9.0 compliant sound card ATI cards older than the HD series are not officially supported but may be compatible in many cases (e.g X300, X800, X1300, etc.).