PC requirements

Dishonored System Requirements

Dishonored needs at least 3.0 GHz dual core or better, 3 GB system RAM and DirectX 9 compatible with 512 MB video RAM or better (NVIDIA GeForce GTX 460 / ATI Radeon HD 5850) graphics. For the recommended experience you want 2.4 GHz quad core or better (enhanced for multi-core processors), 4 GB system RAM and DirectX 9 compatible with 768 MB video RAM or better (NVIDIA GeForce GTX 460 / ATI Radeon HD 5850) graphics.

Verified Sources: Steam store listing
Dishonored minimum and recommended PC specifications
Component Minimum Recommended
Operating system Windows Vista / Windows 7 Windows Vista / Windows 7 (enhanced for 64-bit OS)
Processor 3.0 GHz dual core or better 2.4 GHz quad core or better (enhanced for multi-core processors)
Memory 3 GB system RAM 4 GB system RAM
Graphics DirectX 9 compatible with 512 MB video RAM or better (NVIDIA GeForce GTX 460 / ATI Radeon HD 5850) DirectX 9 compatible with 768 MB video RAM or better (NVIDIA GeForce GTX 460 / ATI Radeon HD 5850)
Storage 9 GB 9 GB
Not sure how your PC compares? Use the Can I Run It checker — pick your CPU and GPU and it tells you which column you land in.

Other platforms

Dishonored is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running Dishonored on PC

Can my PC run Dishonored?
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 Dishonored need?
9 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.