OS: Windows XP or Windows Vista Processor: 2.8 GHz or faster (XP) or 3.2 GHz or faster* (Vista) Memory: 1 GB RAM (XP) or 1.5 GB RAM (Vista) Graphics memory: 256 MB Storage: 12 GB Sound: DirectX 9.0c compatible Supported Processors: Intel Pentium 4 2.8 GHz (3.2 GHz for Vista) or faster, Intel Core 2.0 GHz (2.2 GHz for Vista) or faster, AMD Athlon 2800+ (3200+ for Vista) or faster. Graphics card: NVIDIA GeForce 6800 GT or greater; ATI Radeon 9800 Pro (Radeon X800 Pro for Vista) or greater. Laptop versions of these chipsets may work but are not supported. Integrated chipsets are not supported. Updates to your video and sound card drivers may be required.