Official specs from Steam

The Witcher 2: Assassins of Kings system requirements

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

The Witcher 2: Assassins of Kings release info Steam page Check other games

Minimum

OS *	Windows XP/Vista/7
Processor	Intel 2.2 GHz Dual-Core or AMD 2.5 GHz Dual-Core
Memory	1.5 GB (Win XP), 2GB (Win Vista/Win 7)
Graphics	GeForce 8800 (512 MB) or Radeon HD3850 (512 MB). Resolution: 1280x720.
DirectX®	DirectX 9.29 has to be installed.
Hard Drive	25GB
Sound

macOS minimum

OS	macOS 11.0, macOS 12.0, and macOS 13.0
Processor	Intel Core 2 Duo or Apple silicon (M1/M2).
Memory	4 GB RAM
Graphics	NVIDIA GeForce GT 650M 512 MB (1440x900, low), Radeon HD 5770 1 GB (1440x900, low), or Apple silicon (M1/M2). Intel integrated graphics are not supported
Hard Drive	25 GB HD space

macOS recommended

OS	macOS 11.0, macOS 12.0, and macOS 13.0
Processor	Quad Core Intel or Apple silicon (M1/M2).
Memory	8 GB RAM
Graphics	NVIDIA GeForce GTX 675MX 1 GB (1920x1080, medium), Radeon HD 6970M 1 GB (1920x1080, medium), Apple silicon (M1/M2), or higher
Hard Drive	25 GB HD space

FAQ

What graphics card do I need for The Witcher 2: Assassins of Kings?

Minimum: GeForce 8800 (512 MB) or Radeon HD3850 (512 MB). Resolution: 1280x720.. Recommended: GeForce 260 (1 GB) or Radeon HD 4850 (1 GB). Resolution: 1440x900..

How much RAM does The Witcher 2: Assassins of Kings need?

The Witcher 2: Assassins of Kings needs 1.5 GB (Win XP), 2GB (Win Vista/Win 7) at minimum, 3 GB (Win XP), 4GB (Win Vista/Win 7) recommended.

How big is The Witcher 2: Assassins of Kings?

The Witcher 2: Assassins of Kings requires 25GB.

Does The Witcher 2: Assassins of Kings run on Mac or Steam Deck/Linux?

Yes, there is a native macOS version. A native Linux build is available.