Activision & Infinity Ward have finally made known the PC requirements to play their upcoming Call of Duty: Ghosts titles. Sadly they only provide the minimum requirements but its better than nothing.
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
Memory: 6 GB RAM
Hard Disk Space: 40 GB
Video: NVIDIA® GeForce® GTS 450 / ATI® Radeon™ HD 5870 or better
Sound: DirectX compatible sound card
DirectX®: DirectX® 11
Internet: Broadband Internet connection for Steam and Online Multiplayer.
So no DirectX 10, Dual Core is still usable and at least 6GB of ram which might pose an issue to gamers with only 8GB in their system and finally 64-bit is needed, no more 32-bit Windows allowed.