Assassins Creed 3

Minimum
OS: Windows Vista (SP2) / Windows 7 (SP1) / Windows 8CPU: 2.66 GHz Intel Core2 Duo E6700 or 3.00 GHz AMD Athlon 64 X2 6000+ or better recommended
RAM: 2 GB (4 GB recommended)
GPU RAM: 512 MB DirectX 9.0c-compliant with Shader Model 4.0 or higher (see supported list)*
GPU: Nvidia GeForce 8600 GT or AMD Radeon HD 3870
AUDIO: DirectX 9.0c-compliant (5.1 surround sound recommended)
DVD: Dual-layer drive
HDD: 17 GB of free hard disk space
OTHER: Windows-compatible keyboard, mouse, optional controller (Xbox 360 Controller for Windows recommended)
Multiplayer: 256 kbps or faster broadband connection
AC3 Supported Video Cards:
AMD Radeon HD 3870 / 4000 / 5000 / 6000 / 7000 series or better
NVIDIA GeForce 8600 GT / 9 / 100 / 200 / 300 / 400 / 500 / 600 series or better

Recommended
CPU: 2.6 GHz Intel Core 2 Quad Q9400 or 3.0 GHz AMD Phenom II X4 940CPU Speed: Info
RAM: 4 GB
OS: Windows Vista (SP2) / Windows 7 (SP1) / Windows 8
Video Card: 1024 MB DirectX 10 compliant with Shader Model 5.0 or higher (GeForce GTX 460 or Radeon HD 6850)
Sound Card: Yes
Free Disk Space: 17 GB

Game Release 

EU Release Date:Nov-23-2012
US Release Date:Nov-20-2012
AU Release Date:Nov-20-2012

Official website http://assassinscreed.ubi.com/ac3/en-GB/home/index.aspx