System requirements Left 4 Dead

From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four players in an epic struggle for survival against swarming zombie hordes and terrifying mutant monsters.

Left 4 Dead system requirements
Valve

Minimum pc requirements list Left 4 Dead

Minimum:
  • Supported OS: Windows® 7 32/64-bit / Vista 32/64 / XP
  • Processor: Pentium 4 3.0GHz
  • Memory: 1 GB
  • Graphics: 128 MB, Shader model 2.0, ATI 9600, NVidia 6600 or better
  • Hard Drive: At least 7.5 GB of free space
  • Sound Card: DirectX 9.0c compatible sound card

Recommended pc requirements list Left 4 Dead

Recommended:
  • Supported OS: Windows® 7 32/64-bit / Vista 32/64 / XP
  • Processor: Intel core 2 duo 2.4GHz
  • Memory: 1 GB
  • Graphics: Shader model 3.0, NVidia 7600, ATI X1600 or better