PC requirements

Assassin's Creed III System Requirements

Assassin's Creed III needs at least 2.60 GHz Intel® Core™2 Duo E8200 or 2.60 GHz AMD Athlon™ II X4 620, 2 GB of RAM and 512 MB DirectX® 10—compliant with Shader Model 4.0 or higher (see supported list)* graphics. For the recommended experience you want 2.66 GHz Intel® Core™2 Quad Q9400 or 3.00 GHz AMD Phenom™ II X4 940, 4 GB of RAM and 1024 MB DirectX® 10—compliant with Shader Model 5.0 or higher (see supported list)* graphics.

Verified Sources: Steam store listing
Assassin's Creed III minimum and recommended PC specifications
Component Minimum Recommended
Operating system Windows Vista® (SP2) Windows Vista® (SP2)
Processor 2.60 GHz Intel® Core™2 Duo E8200 or 2.60 GHz AMD Athlon™ II X4 620 2.66 GHz Intel® Core™2 Quad Q9400 or 3.00 GHz AMD Phenom™ II X4 940
Memory 2 GB 4 GB
Graphics 512 MB DirectX® 10—compliant with Shader Model 4.0 or higher (see supported list)* 1024 MB DirectX® 10—compliant with Shader Model 5.0 or higher (see supported list)*
Storage 17 GB 17 GB
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Other platforms

Assassin's Creed III is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running Assassin's Creed III on PC

Can my PC run Assassin's Creed III?
Compare your CPU, GPU and RAM against the minimum column below. If your parts match or beat every minimum row, the game will launch — though you may need to lower settings. Matching the recommended column is what gets you 60fps at 1080p.
How much storage does Assassin's Creed III need?
17 GB
What is the difference between minimum and recommended specs?
Minimum means the game starts and is playable, usually at 30fps on low settings at 1080p. Recommended is the developer's target for a smooth 60fps experience at high settings.