System Requirements
* Mac OS X 10.5.4 or later
* Digital download version of Call of Duty 4: Modern Warfare
* 2GHz Intel Core 2 Duo processor (2.4GHz or higher recommended)
* 1GB of RAM (2GB recommended)
* 128MB video RAM (256MB recommended); ATI Radeon X1600, NVidia Geforce 7300, or higher (Intel integrated video chipsets are not supported)
* 8GB hard disk space
The difference of mac!