PC requirements

Call of Duty: World at War System Requirements

Call of Duty: World at War needs at least Pentium 4 @ 3 GHz/AMD 64 3200+ and 512 MB (1 GB for Vista) of RAM.

Verified Sources: Steam store listing
Call of Duty: World at War minimum and recommended PC specifications
Component Minimum
Processor Pentium 4 @ 3 GHz/AMD 64 3200+
Memory 512 MB (1 GB for Vista)
Storage 8 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

Call of Duty: World at War is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running Call of Duty: World at War on PC

Can my PC run Call of Duty: World at War?
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 Call of Duty: World at War need?
8 GB Free