Official specs from Steam

Far Cry 3: Blood Dragon system requirements

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

Minimum

OS *Windows® XP (SP3) / Windows Vista® (SP2) / Windows 10 (64-bit versions only)
Processor2.66 GHz Intel® Core™2 Duo E6700 or 3.00 GHz AMD Athlon™ 64 X2 6000+
Memory2 GB
Graphics512 MB DirectX® 9.0c–compliant
DirectX®DirectX® 9.0c
Hard Drive3 GB HD space
SoundDirectX 9.0c–compliant
Perpherals SupportWindows-compatible keyboard, mouse, optional controller

Recommended

OS *Windows® XP (SP3) / Windows Vista® (SP2) / Windows 10 (64-bit versions only)
Processor2.93 GHz Intel® Core™ i3-530 or 3.10 GHz AMD Phenom™ II X2 550 or better
Memory4 GB
Graphics1024 MB DirectX 11–complaint or higher
DirectX®DirectX® 11
Hard Drive3 GB HD space
Sound5.1 surround sound
Perpherals SupportWindows-compatible keyboard, mouse, Xbox 360 Controller for Windows

FAQ

What graphics card do I need for Far Cry 3: Blood Dragon?

Minimum: 512 MB DirectX® 9.0c–compliant. Recommended: 1024 MB DirectX 11–complaint or higher.

How much RAM does Far Cry 3: Blood Dragon need?

Far Cry 3: Blood Dragon needs 2 GB at minimum, 4 GB recommended.

How big is Far Cry 3: Blood Dragon?

Far Cry 3: Blood Dragon requires 3 GB HD space.

Does Far Cry 3: Blood Dragon run on Mac or Steam Deck/Linux?

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