Left 4 Dead 2 System Requirements

Minimum System Requirements

Operating System: Windows 7 / Vista / XP
Processor: Intel Pentium IV running at 3.0 GHz or AMD equivalent
Memory: 1 GB of RAM for XP and 2 GB of RAM for Vista and 7
Hard Drive: 7.5 GB or more
Video Card: 12( MB with Shader Model 2.0 support (GeForce 6600 or ATI X800)
Sound Card: DirectX 9.0c compatible
Optical Drive: DVD-ROM running at 1X
DirectX: DirectX 9.0c
Input: Keyboard & Mouse

Recommended System Requirements

Operating System: Windows 7 / Vista / XP
Processor: Intel Core 2 Duo running at 2.6 GHz or AMD equivalent
Memory: 1 GB of RAM for XP and 2 GB of RAM for Vista and 7
Hard Drive: 7.5 GB or more
Video Card: 256 MB with Shader Model 3.0 support (GeForce 7600 or ATI X1600)
Sound Card: DirectX 9.0c compatible
Optical Drive: DVD-ROM running at 8X
DirectX: DirectX 9.0c
Input: Keyboard & Mouse