Official specs from Steam

Mafia: Definitive Edition system requirements

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

Mafia: Definitive Edition release infoSteam page Check other games

Minimum

NoteRequires a 64-bit processor and operating system
OSWindows 10 64-bit
ProcessorIntel Core-i5 2550K 3.4GHz / AMD FX 8120 3.1 GHz
Memory6 GB RAM
GraphicsNVIDIA GeForce GTX 660 / AMD Radeon HD 7870
DirectXVersion 11
Storage50 GB available space
Sound CardDirectX Compatible

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 10 64-bit
ProcessorIntel Core-i7 3770 3.4GHz / AMD FX-8350 4.2GHz
Memory16 GB RAM
GraphicsNVIDIA GeForce GTX 1080 / AMD Radeon RX 5700
DirectXVersion 11
Storage50 GB available space
Sound CardDirectX Compatible

FAQ

What graphics card do I need for Mafia: Definitive Edition?

Minimum: NVIDIA GeForce GTX 660 / AMD Radeon HD 7870. Recommended: NVIDIA GeForce GTX 1080 / AMD Radeon RX 5700.

How much RAM does Mafia: Definitive Edition need?

Mafia: Definitive Edition needs 6 GB RAM at minimum, 16 GB RAM recommended.

How big is Mafia: Definitive Edition?

Mafia: Definitive Edition requires 50 GB available space.

Does Mafia: Definitive Edition run on Mac or Steam Deck/Linux?

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