UbiBlog now offers PC system specifications for Assassin's Creed Unity, revealing the action/stealth sequel will require a 64-bit OS and 6 GB of RAM. Also, this new trailer is the third in the "experience" series from the game, highlighting its open world, as noted in the description: "In Assassin’s Creed Unity, all of Paris will be at your fingertips. Creative Director Alex Amancio introduces the huge and detailed city full of opportunities and exciting side missions. Whether you’re solving murder mysteries or exploring the different and unique districts of the city, Paris and the entire world of Assassin’s Creed Unity are yours to explore." Here are the specs and the clip:

64-bit operating system
Required

Supported OS
Windows 7 SP1, Windows 8/8.1 (64bit versions only)

Processor
Minimum
Intel Core i5-2500K @ 3.3 GHz or AMD FX-8350 @ 4.0 GHz or AMD Phenom II x4 940 @ 3.0 GHz

Recommended
Intel Core i7-3770 @ 3.4 GHz or AMD FX-8350 @ 4.0 GHz or better

RAM
Minimum
6 GB

Recommended
8GB

Video Card
Minimum
NVIDIA GeForce GTX 680 or AMD Radeon HD 7970 (2 GB VRAM)

Recommended
NVIDIA GeForce GTX 780 or AMD Radeon R9 290X (3 GB VRAM)

DirectX
Version 11

Sound Card
DirectX 9.0c compatible sound card with latest drivers

Hard Drive Space
50 GB available space

Peripherals Supported
Windows-compatible keyboard and mouse required, optional controller

Multiplayer
256 kbps or faster broadband connection

Supported Video Cards at Time of Release
NVIDIA GeForce GTX 680 or better, GeForce GTX 700 series; AMD Radeon HD7970 or better, Radeon R9 200 series
Note: Laptop versions of these cards may work but are NOT officially supported.