Official specs from Steam

Total War: Warhammer III system requirements

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

Minimum

OS *Windows 7 64-bit
ProcessorIntel i3/Ryzen 3 series
Memory6 GB RAM
GraphicsNvidia GTX 900/AMD RX 400 series | Intel Iris Xe Graphics
DirectXVersion 11
Storage120 GB available space
Additional NotesThis game may be updated over time and have paid for and free. additional content released for it. Please be aware that this may increase the minimum requirements for running the game above the specification stated here. Microsoft no longer supports Windows 10 or older versions.

Recommended

OSWindows 10 64-bit
ProcessorIntel i5/Ryzen 5 series
Memory8 GB RAM
GraphicsNvidia GeForce GTX 1660 Ti/AMD RX 5600-XT/Intel Arc A750
DirectXVersion 11
Storage120 GB available space
Additional Notes8GB Memory if using integrated GPU. Microsoft no longer supports Windows 10 or older versions.

macOS minimum

OSmacOS 15.7
ProcessorApple M1 (8‑Core CPU) or better
Memory8 GB RAM
GraphicsApple M1 (7‑Core GPU) or better
Storage125 GB available space
Additional NotesThe game is officially supported on all Mac models released since November 2020 with an Apple M1 chip or better. To check your Mac model and when it was released, select About This Mac from the Apple menu on your menu bar. ——— The following Macs are capable of running the game but do not consistently meet the standards required for official support: * All Mac models with an AMD GPU that support macOS 15.7

FAQ

What graphics card do I need for Total War: Warhammer III?

Minimum: Nvidia GTX 900/AMD RX 400 series | Intel Iris Xe Graphics. Recommended: Nvidia GeForce GTX 1660 Ti/AMD RX 5600-XT/Intel Arc A750.

How much RAM does Total War: Warhammer III need?

Total War: Warhammer III needs 6 GB RAM at minimum, 8 GB RAM recommended.

How big is Total War: Warhammer III?

Total War: Warhammer III requires 120 GB available space.

Does Total War: Warhammer III run on Mac or Steam Deck/Linux?

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