Die Systemanforderungen wurden veröffentlicht:

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.
Quelle: http://blog.ubi.com/assassins-creed-unity-pc-specs/

Teilweise ziemlich hoch angesetzt worden. Mal sehen ob das beim Release wirklich für das Spiel gebraucht wird.