Minimum System Requirements:

Operating System: Microsoft Windows 7 / Vista SP2 / XP SP3
Processor: 3.0 GHz Intel Pentium D processor (Windows 7 / Vista) / 2.6 GHz Intel Pentium D processor (Windows XP) or 2.0 GHz AMD Athlon 64 X2 or equivalent processor
Memory: 2.5 GB RAM (Windows 7 / Vista) / 2.0 GB RAM (Windows XP)
Hard Drive: 6.5 GB uncompressed hard drive space
Video Card (graphics): 256 MB DirectX 9.0c-compatible, 3D video card supporting Shaders 3.0 (NVIDIA GeForce 7600 or better, ATI Radeon X1600 or better) -- NOTE: Onboard (built-in) integrated chipsets are not supported
Sound Card: 16-bit DirectX 9.0c-compatible sound card
DirectX: DirectX 9.0c (included)
8x DVD-ROM drive

Recommended Requirements

Operating System: Microsoft Windows 7 / Vista SP2 / XP SP3

Processor: 3.0 GHz Intel Core2 Duo processor or 2.4 GHz AMD Athlon 64 X2 or equivalent processor
Memory: 2.5 GB RAM (Windows 7 / Vista) / 2.0 GB RAM (Windows XP)
Hard Drive: 6.5 GB uncompressed hard drive space
Video Card (graphics): 512 MB DirectX 9.0c-compatible, 3D video card supporting Shaders 3.0 (NVIDIA GeForce 8800GT or better, ATI Radeon HD3870 or better)
Sound Card: 16-bit DirectX 9.0c-compatible sound card
DirectX: DirectX 9.0c (included)
8x DVD-ROM drive