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Minimum System Requirement:OS: Windows Vista (Service Pack 2) 32-BitProcessor: 2 GHz Dual Core (Core 2 Duo 2.4 GHZ or Athlon X2 2.7 GHz)Memory: 2 GBHard Drive: 20 GBGraphics Card (AMD): DirectX 10.1 compatible with 512 MB RAM (ATI RADEON 3000, 4000, 5000 OR 6000 series, with ATI RADEON 3870 or higher performance)Graphics Card (NVIDIA): DirectX 10.0 compatible with 512 MB RAM (NVIDIA GEFORCE 8, 9, 200, 300, 400 OR 500 series with NVIDIA GEFORCE 8800 GT or higher performance)Sound card: DirectX compatibleKeyboard and MouseDVD ROM DriveRecommended System Requirement:OS: Windows 7 64-BitProcessor: Quad-Core CPUMemory: 4 GBHard Drive: 20 GBGraphics Card: DirectX 11 compatible with 1024 MB RAM (NVIDIA GEFORCE GTX 560 or ATI RADEON 6950)Sound Card: DirectX compatibleKeyboard and MouseDVD ROM Drive