According to Yahoo! Games the Call of Duty 4 PC demo will be released on October 11th, 2007. 3 weeks before the expected release date of November 5th, 2007. The COD4 Demo will be available exclusively via Yahoo! Games. Yahoo! Games will only have the exclusive download for the first day. It will be available on all other sites a day after the initial release
The Demo (single player only, sorry guys) will take place in the "Bog Rescue" level. (aka the level in the video below.)
"Set in a bombed-out Middle-Eastern city, the 'Bog Rescue' drops you into a nighttime conflict-in-progress. Your primary task is to locate and secure a friendly Abrams M1A2 tank"
* CPU: 2.4 GHz dual core or better is recommended * RAM: 1G for XP; 2G for Vista is recommended * Harddrive: 8GB of free hard drive space * Video card: 3.0 Shader Support recommended. Nvidia Geforce 7800 or better or ATI Radeon X1800 or better
"Required (Minimum) Specs"
* CPU: Intel(R) Pentium(R) 4 2.4 GHz or AMD(R) Athlon(TM) 64 2800+ processor or any 1.8Ghz Dual Core Processor or better supported * RAM: 512MB RAM (768MB for Windows Vista * Harddrive: 8GB of free hard drive space * Video card: NVIDIA(R) Geforce(TM) 6600 or better or ATI(R) Radeon(R) 9800Pro or better