Left 4 Dead 2 minimum requirements for Windows assume having at least Windows 7 32/ / Vista 32/64 / XP operating system. Your processor should be Pentium 4 3.0GHz or a more powerful one. The minimum RAM requirement is 2 GB. As for a graphics card, it should be Video card with 128 MB, Shader model 2.0. ATI X800, NVidia 6600, and it should support Direct X Version 9.0c. You also have to have 13 GB free disk space to install the game.
If you go for recommended requirements for Left 4 Dead 2 for Windows, your operating system should be Windows 7 32/ / Vista 32/64 / XP. Recommended CPU would be Intel core 2 duo 2.4GHz CPU or equivalent. For RAM, it is recommended to have 2 GB or more. And video card — Video Card Shader model 3.0. NVidia 7600, ATI X1600. It should also support Direct X Version 9.0c.
As for Mac OS, Left 4 Dead 2 requirements here start with MacOS 10.7 operating system. Processor needs to be at least Dual core Intel, 2GHz. 2 GB of RAM is required. Your graphics card should be ATI Radeon 2400 or higher / NVIDIA 8600M or higher / Intel HD Graphics 3000. Finally, the game needs 13 GB of free disk space.
Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008. This co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.