Official specs from Steam

Warhammer 40,000: Space Marine II system requirements

Minimum and recommended PC specs as listed by the developer on Steam.

Minimum

NoteRequires a 64-bit processor and operating system
OSWindows 10 (1903 min)/11 64-bit
ProcessorAMD Ryzen 5 2600X / Intel Core i5-8600K
Memory8 GB RAM
Graphics6 GB VRAM, AMD Radeon RX 580 / Nvidia GeForce GTX 1060
DirectXVersion 12
Storage75 GB available space
Additional NotesSSD required. 30 FPS in 1920x1080 with "Low" preset.

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 10 (1903 min)/11 64-bit
ProcessorAMD Ryzen 7 5800X / Intel Core i7-12700
Memory16 GB RAM
Graphics8 GB VRAM, AMD Radeon RX 6800 XT / Nvidia GeForce RTX 3070
DirectXVersion 12
Storage75 GB available space
Additional NotesSSD required. 60 FPS in 1920x1080 with the "Ultra" preset.

FAQ

What graphics card do I need for Warhammer 40,000: Space Marine II?

Minimum: 6 GB VRAM, AMD Radeon RX 580 / Nvidia GeForce GTX 1060. Recommended: 8 GB VRAM, AMD Radeon RX 6800 XT / Nvidia GeForce RTX 3070.

How much RAM does Warhammer 40,000: Space Marine II need?

Warhammer 40,000: Space Marine II needs 8 GB RAM at minimum, 16 GB RAM recommended.

How big is Warhammer 40,000: Space Marine II?

Warhammer 40,000: Space Marine II requires 75 GB available space.

Does Warhammer 40,000: Space Marine II run on Mac or Steam Deck/Linux?

There is no native macOS version. There is no native Linux build (Proton compatibility may vary).