PC requirements

Tom Clancy's Rainbow Six: Vegas System Requirements

Tom Clancy's Rainbow Six: Vegas needs at least 3 GHz Pentium 4 or AMD Athlon 3000 (3.5 GHz Pentium 4 or Athlon 3500 recommended), 1 GB (2 GB recommended) of RAM and 128 MB DirectX 9.0c-compliant, Shader 3.0-enabled video card (256MB recommended) (see supported list*) graphics.

Verified Sources: Steam store listing
Tom Clancy's Rainbow Six: Vegas minimum and recommended PC specifications
Component Minimum
Processor 3 GHz Pentium 4 or AMD Athlon 3000 (3.5 GHz Pentium 4 or Athlon 3500 recommended)
Memory 1 GB (2 GB recommended)
Graphics 128 MB DirectX 9.0c-compliant, Shader 3.0-enabled video card (256MB recommended) (see supported list*)
DirectX DirectX 9 or higher
Storage 7 GB free
Not sure how your PC compares? Use the Can I Run It checker — pick your CPU and GPU and it tells you which column you land in.

Other platforms

Tom Clancy's Rainbow Six: Vegas is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running Tom Clancy's Rainbow Six: Vegas on PC

Can my PC run Tom Clancy's Rainbow Six: Vegas?
Compare your CPU, GPU and RAM against the minimum column below. If your parts match or beat every minimum row, the game will launch — though you may need to lower settings. Matching the recommended column is what gets you 60fps at 1080p.
How much storage does Tom Clancy's Rainbow Six: Vegas need?
7 GB free