Official specs from Steam

The Witcher system requirements

Minimum and recommended PC specs as listed by the developer on Steam. Native macOS version available.

Minimum

Supported OSMicrosoft® Windows® /XP/Vista
DirectX VersionDirectX 9.0c (included) or higher
ProcessorIntel Pentium 4 2.4 GHz or Athlon 64 +2800 (Intel Pentium 4 3.0 GHz or AMD Athlon 64 +3000 recommended). Athlon XP series, such as the Athlon XP +2400, is not supported
GraphicsNVIDIA GeForce 6600 or ATI Radeon 9800 or better (NVIDIA GeForce 7800 GTX or ATI Radeon X1950 XT or better recommended)
Memory1 GB RAM (2 GB RAM recommended)
SoundDirectX version 9.0c-compatible sound card
Hard Drive15 GB Free

macOS minimum

OSmacOS 11.0, macOS 12.0, and macOS 13.0
ProcessorIntel Core i5 or Apple silicon (M1/M2)
Memory4 GB of RAM
GraphicsNVIDIA GeForce GT 650m (1440x900), AMD Radeon HD 6750M (1440x900), Intel HD 5000 (1366x768), or Apple silicon (M1/M2)
Hard Drive14.25 GB free space Display compatibility notice: 1440x900 resolution is the recommended resolution for best performance. It is not recommended to use native Retina resolutions.

macOS recommended

OSOS: macOS 11.0, macOS 12.0, and macOS 13.0
ProcessorProcessor: Intel Core i5, Core i7, or Apple silicon (M1/M2)
Memory4GB RAM
GraphicsGraphics: NVIDIA GeForce GT 650m (1440x900), AMD Radeon HD 6970M (1920x1080), Intel Iris Pro 5200 (1440x900), or Apple silicon (M1/M2)
Hard Drive14.25 GB free space Display compatibility notice: 1440x900 resolution is the recommended resolution for best performance. It is not recommended to use native Retina resolutions.

FAQ

What graphics card do I need for The Witcher?

Minimum: NVIDIA GeForce 6600 or ATI Radeon 9800 or better (NVIDIA GeForce 7800 GTX or ATI Radeon X1950 XT or better recommended).

How much RAM does The Witcher need?

The Witcher needs 1 GB RAM (2 GB RAM recommended) at minimum.

How big is The Witcher?

The Witcher requires 15 GB Free.

Does The Witcher run on Mac or Steam Deck/Linux?

Yes, there is a native macOS version. There is no native Linux build (Proton compatibility may vary).