PC requirements

Mass Effect 3 System Requirements

Mass Effect 3 needs at least 1.8 GHz Intel Core 2 Duo (equivalent AMD CPU) and 2 GB RAM. For the recommended experience you want 2.4 GHz Intel Core 2 Duo (equivalent AMD CPU), 4 GB RAM and AMD/ATI Radeon HD 4850 512 MB or greater / NVidia GeForce 9800 GT 512 MB or greater graphics.

Verified Sources: Steam store listing
Mass Effect 3 minimum and recommended PC specifications
Component Minimum Recommended
Operating system Win 7 Win 7
Processor 1.8 GHz Intel Core 2 Duo (equivalent AMD CPU) 2.4 GHz Intel Core 2 Duo (equivalent AMD CPU)
Memory 2 GB RAM 4 GB RAM
Graphics — AMD/ATI Radeon HD 4850 512 MB or greater / NVidia GeForce 9800 GT 512 MB or greater
DirectX Version 9.0c Version 9.0c
Storage 15 GB available space 15 GB available space
Additional notes DirectX 9.0c compatible DirectX 9.0c compatible
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.
Playing on a handheld instead? Players report Mass Effect 3 as Gold on Steam Deck and Linux.

Other platforms

Mass Effect 3 is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running Mass Effect 3 on PC

Can my PC run Mass Effect 3?
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 Mass Effect 3 need?
15 GB available space
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.