Minimum system requirements for PC
Windows XP Service Pack 3, Windows Vista,7,8 (32bit/64bit)
DirectX 9 graphics card with 512Mb Video RAM: AMD Radeon HD 2600 XT, nVidia 8600
Dual core CPU: AMD Athlon64 X2 2.1 Ghz (4050+), Intel Core2 Duo 1.86 Ghz (E6300)
1GB Memory (2GB on Vista)

Recommended system requirements for PC
Windows Vista, Windows 7 or Windows 8
DirectX 11 graphics card with 1GB Video RAM: AMD Radeon HD 4870, nVidia GTX 480
Quad core CPU: AMD Phenom II X2 565, Intel Core i5-750
4GB Memory