Official specs from Steam

Tom Clancy's Splinter Cell: Blacklist system requirements

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

Minimum

OS *Originally released for Windows 7, the game can be played on Windows 10 and Windows 11 OS
Processor2.53 GHz Intel® Core™2 Duo E6400 or 2.80 GHz AMD Athlon™ 64 X2 5600+ or better
Memory2 GB RAM
Graphics512 MB DirectX® 10–compliant with Shader Model 4.0 or higher
DirectX®9
Hard Drive25 GB HD space
SoundDirectX 10–compliant DirectX 9.0c–compliant
AdditionalPeripherals Supported: Windows-compatible keyboard, mouse, headset, optional controller (Xbox 360 Controller for Windows recommended). Requires UPLAY account.

Recommended

Processor2.66 GHz Intel® Core™2 Quad Q8400 or 3.00 GHz AMD Phenom™ II X4 940 or better
Memory4 GB RAM
DirectX®11
Hard Drive25 GB HD space
Sound(5.1 surround sound recommended)
Other RequirementsBroadband Internet connection
AdditionalPeripherals Supported: Windows-compatible keyboard, mouse, headset, optional controller (Xbox 360 Controller for Windows recommended). Requires UPLAY account..

FAQ

What graphics card do I need for Tom Clancy's Splinter Cell: Blacklist?

Minimum: 512 MB DirectX® 10–compliant with Shader Model 4.0 or higher.

How much RAM does Tom Clancy's Splinter Cell: Blacklist need?

Tom Clancy's Splinter Cell: Blacklist needs 2 GB RAM at minimum, 4 GB RAM recommended.

How big is Tom Clancy's Splinter Cell: Blacklist?

Tom Clancy's Splinter Cell: Blacklist requires 25 GB HD space.

Does Tom Clancy's Splinter Cell: Blacklist run on Mac or Steam Deck/Linux?

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