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256 GB or 512 GB Mac? The question is where your photos and projects will live

The 256 GB Mac is fine if your large files live elsewhere and tight if they do not. How to tell which kind of user you are before you pay for the upgrade.

5 min read

The difference between the two is mostly about one question: will your photos, videos and projects live on the Mac, or somewhere else? Answer that and the choice makes itself.

What 256 GB really gives you

After macOS and its hidden system files, a 256 GB Mac starts with somewhere around 200 GB or a little more for you. A few everyday apps, an office suite and a browser take 20 to 40 GB. That leaves about 150 GB, of which you should keep 20 to 40 GB free.

A real 256 GB MacBook that ended up 96 percent full is dissected in the 256 GB case study.

256 GB works if

  • You use iCloud Photos with Optimize Mac Storage on.
  • Your work is mostly in a browser or in cloud documents.
  • You are happy keeping an external drive for anything large.
  • You do not develop software, edit video or play large games.

Pay for 512 GB if

  • You keep your whole photo library at full size on the Mac.
  • You write software. Tools, caches and simulators take 50 to 150 GB. See Mac storage for developers.
  • You edit video or music, even as a hobby.
  • You plan to keep the Mac for five years or more.
  • You do not want to think about storage.

The cost comparison

OptionWhat it costs you
Buy 512 GBThe upgrade price, once
256 GB plus an external SSDA cheaper drive, but it has to be carried or plugged in
256 GB plus iCloud storageA monthly fee that never ends. See iCloud versus an external drive

Neither disk can be upgraded later, which is covered in can you upgrade Mac storage.

Common questions

Is 256 GB enough for a MacBook Air?

For browsing, documents and photos kept in iCloud with Optimize Mac Storage, usually yes. For full-size photo libraries, software development or video, 512 GB is more comfortable.

How much space do I actually get on a 256 GB Mac?

Roughly 200 GB or a little more after macOS and its system files, and some of that should stay free for the Mac to work well.

Is it worth paying for 512 GB on a Mac?

If you keep large files on the Mac or plan to keep it for many years, yes. The storage cannot be upgraded later.

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