This has been confirmed by Activision.
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: 40GB
[*]Video: Nvidia GeForce GTS 450 / ATI Radeon HD 5870 or better
[*]Sound: DirectX compatible sound card
[*]DirectX: DirectX 11
These alone are very high for min. specs - Considering a GT 8800 (released in what, like 2007?) will run Battlefield 4, known to be a very demanding game, which I can't say the same for Call of Duty, at least up until now.
It gets better...
The recommended graphics card is a GTX 780. A fkn 780, you have to be kidding right? That's a $650 card, only released a few months ago. And that 40GB HDD space, people were complaining about BF4's 30gigs.
This can either mean they somehow stepped up their game an awful lot without even getting a new engine (yep, still the tweaked Quake engine), or it's just so poorly optimized that these are just the specs. Could of course be all a marketing scheme.