PC requirements

The Sims 3: Seasons System Requirements

The Sims 3: Seasons needs at least WIN: 2.0 GHz P4 processor or equivalent for XP/2.4 GHz P4 processor or equivalent for Vista and Windows 7 and 2 GB RAM.

Verified Sources: Steam store listing
The Sims 3: Seasons minimum and recommended PC specifications
Component Minimum
Operating system Windows XP (SP2), Windows Vista (SP1), or Windows 7
Processor WIN: 2.0 GHz P4 processor or equivalent for XP/2.4 GHz P4 processor or equivalent for Vista and Windows 7
Memory 2 GB RAM
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

The Sims 3: Seasons is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running The Sims 3: Seasons on PC

Can my PC run The Sims 3: Seasons?
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 The Sims 3: Seasons need?
Storage requirements are not published for this title yet.