PC requirements

Tom Clancy's Rainbow Six 3: Raven Shield System Requirements

Tom Clancy's Rainbow Six 3: Raven Shield needs at least 800 MHz Pentium® III, AMD Athlon™, or equivalent (1.3 GHz Pentium 4, AMD Athlon, or equivalent recommended), 128 MB RAM (XP users: 256 MB RAM required) and 32 MB DirectX® 8-compliant 3D video card with hardware T&L graphics.

Verified Sources: Steam store listing
Tom Clancy's Rainbow Six 3: Raven Shield minimum and recommended PC specifications
Component Minimum
Processor 800 MHz Pentium® III, AMD Athlon™, or equivalent (1.3 GHz Pentium 4, AMD Athlon, or equivalent recommended)
Memory 128 MB RAM (XP users: 256 MB RAM required)
Graphics 32 MB DirectX® 8-compliant 3D video card with hardware T&L
Storage 3 GB minimum hard drive space
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 3: Raven Shield 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 3: Raven Shield on PC

Can my PC run Tom Clancy's Rainbow Six 3: Raven Shield?
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 3: Raven Shield need?
3 GB minimum hard drive space