minimal:
reqprocessor: Intel Core 2 Duo E8200 @ 2.6 GHz or AMD Athlon II X2 240 @ 2.8 GHz
reqmemory: 2 MB RAM
reqdiskspace: 4 GB available space
reqsystem: Windows 7 SP1 or Windows 8 or Windows 8.1 (32/64bit versions)

recommended:
reqprocessor: Intel Core i3 2105 @ 3.1 GHz or AMD Phenom II X4 955 @ 3.2 GHz
reqgraphics: nVidia GeForce GTX 470 or AMD Radeon HD5870 or better (1024MB VRAM with Shader Model 5.0)
reqmemory: 4 MB RAM
reqdiskspace: 4 GB available space
reqsystem: Windows 7 SP1 or Windows 8 or Windows 8.1 (32/64bit versions)