PC requirements

Pirates of the Caribbean: At World's End System Requirements

Pirates of the Caribbean: At World's End needs at least Pentium 4 class or AMD Athlon processor, 1.5 GHz, 256 MB RAM and 64 MB DirectX 9.0c-compatible, 3D video card (NVIDIA GeForce, ATI Radeon, or equivalent) with Hardware Transform and Lighting capability. graphics.

Verified Sources: Steam store listing
Pirates of the Caribbean: At World's End minimum and recommended PC specifications
Component Minimum
Operating system Windows XP, Windows Vista (Windows x64 NOT supported)
Processor Pentium 4 class or AMD Athlon processor, 1.5 GHz
Memory 256 MB RAM
Graphics 64 MB DirectX 9.0c-compatible, 3D video card (NVIDIA GeForce, ATI Radeon, or equivalent) with Hardware Transform and Lighting capability.
Storage 1434 MB available space
Additional notes Integrated (built-in) onboard video cards are not supported by this game.
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

Pirates of the Caribbean: At World's End is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running Pirates of the Caribbean: At World's End on PC

Can my PC run Pirates of the Caribbean: At World's End?
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 Pirates of the Caribbean: At World's End need?
1434 MB available space