Call of Duty: Ghosts will require a 64-bit operating system, a DirectX 11 graphics card, and a minimum of 6GB of RAM.
Minimum System Requirements
OS: Windows 7 64-Bit / Windows 8 64-Bit
CPU: Intel Core 2 Duo E8200 2.66 GHZ / AMD Phenom X3 8750 2.4 GHZ or better
RAM: 6 GB RAM
HDD: 50 GB HD space
Video: NVIDIA GeForce GTX 550 Ti / ATI Radeon HD 5870 or better
Sound: DirectX Compatible Sound Card
DirectX: 11
Internet: Broadband connection and service required for Multiplayer Connectivity. Internet connection required for activation.
Recommended System Requirements
Video: NVIDIA GeForce GTX 780