Official specs from Steam

Sonic Mania system requirements

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

Sonic Mania release infoSteam page Check other games

Minimum

OS *Windows 7 / 8 / 10
ProcessorCore 2 Duo
Memory2 GB RAM
GraphicsDirectX 9.0c compliant video card 256MB
DirectXVersion 9.0c
Storage400 MB available space
Sound CardDirectX 9.0c Compatible
Additional NotesMicrosoft no longer supports Windows 10 or older versions.

FAQ

What graphics card do I need for Sonic Mania?

Minimum: DirectX 9.0c compliant video card 256MB.

How much RAM does Sonic Mania need?

Sonic Mania needs 2 GB RAM at minimum.

How big is Sonic Mania?

Sonic Mania requires 400 MB available space.

Does Sonic Mania run on Mac or Steam Deck/Linux?

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