PC requirements

Doom 3 System Requirements

Doom 3 needs at least 2.0 GHz dual core, 3 GB RAM and NVIDIA GeForce 9800 GT / ATI Radeon HD 5750, 512 MB video RAM graphics. For the recommended experience you want 2.4 GHz dual core, 3 GB system RAM and NVIDIA GeForce GTX 260 / ATI Radeon HD 5850, 768 MB video RAM graphics.

Verified Sources: Steam store listing
Doom 3 minimum and recommended PC specifications
Component Minimum Recommended
Operating system Windows vista/ Windows 7 Windows Vista-64/ Windows 7-64
Processor 2.0 GHz dual core 2.4 GHz dual core
Memory 3 GB RAM 3 GB system RAM
Graphics NVIDIA GeForce 9800 GT / ATI Radeon HD 5750, 512 MB video RAM NVIDIA GeForce GTX 260 / ATI Radeon HD 5850, 768 MB video RAM
Storage 11 GB 11 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

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

Quick answers

Running Doom 3 on PC

Can my PC run Doom 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 Doom 3 need?
11 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.