UPDATE (Oct. 23rd): Activision has officially confirmed the minimum PC requirements via the official Activision Store, and they were the same specs revealed 2 weeks ago by Nvidia.
Original story (Oct 7th): Nvidia GeForce website has just posted the minimum spec requirements for Call of Duty: Ghosts on PC.
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
Call of Duty: Ghosts on PC will also get dedicated servers, with rentable servers planned for later after launch.
SOURCE: GeForce via @LiamFTWinter