Official specs from Steam
Half-Life 2 system requirements
Minimum and recommended PC specs as listed by the developer on Steam. Native Linux build available.
Minimum
| OS * | Windows 7, Vista, XP |
|---|---|
| Processor | 1.7 Ghz |
| Memory | 512 MB RAM |
| Graphics | DirectX 8.1 level Graphics Card (requires support for SSE) |
| Storage | 6500 MB available space |
FAQ
What graphics card do I need for Half-Life 2?
Minimum: DirectX 8.1 level Graphics Card (requires support for SSE).
How much RAM does Half-Life 2 need?
Half-Life 2 needs 512 MB RAM at minimum.
How big is Half-Life 2?
Half-Life 2 requires 6500 MB available space.
Does Half-Life 2 run on Mac or Steam Deck/Linux?
There is no native macOS version. A native Linux build is available.