Official specs from Steam
Halo 3 system requirements
Minimum and recommended PC specs as listed by the developer on Steam.
Minimum
| Note | Requires a 64-bit processor and operating system |
|---|---|
| OS * | Windows 7 |
| Processor | Intel Core i7-975 | AMD A12-9800 APU |
| Memory | 2 GB RAM |
| Graphics | GeForce GTS 450 | Radeon R7 Graphics |
| Storage | 55 GB available space |
| Additional Notes | 30 FPS on performance settings at 1920x1080 |
Recommended
| Note | Requires a 64-bit processor and operating system |
|---|
FAQ
What graphics card do I need for Halo 3?
Minimum: GeForce GTS 450 | Radeon R7 Graphics.
How much RAM does Halo 3 need?
Halo 3 needs 2 GB RAM at minimum.
How big is Halo 3?
Halo 3 requires 55 GB available space.
Does Halo 3 run on Mac or Steam Deck/Linux?
There is no native macOS version. There is no native Linux build (Proton compatibility may vary).