Short answer: 512 GB is enough for video editing on a Mac as long as the footage does not live on the internal drive. macOS, Premiere Pro or DaVinci Resolve, caches, previews and the proxies for the current project need about 150 to 250 GB, which leaves 512 GB with room to breathe. 256 GB works with discipline and a capped cache. Neither is enough if every shoot is copied onto the Mac, and the 2 TB upgrade is the most expensive way to solve that.
What actually needs to be on the internal SSD?
The internal drive is the fastest storage the Mac has, so it should hold what is read and written constantly, not what merely needs to exist. That list is shorter than most editors assume.
| Item | Typical size | Must it be local? |
|---|---|---|
| macOS and system data | 25–40 GB | Yes |
| Premiere Pro, Resolve or Final Cut, After Effects, plug-ins, fonts | 20–40 GB | Yes |
| Browsers, office apps, messaging, everything else | 10–20 GB | Yes |
| Media cache (Premiere) or CacheClip (Resolve), capped | 20–50 GB | Yes, it is read every frame |
| Render previews for the current project | 10–30 GB | Yes, they are written while you work |
| Proxies for the current project (about 10–15 GB per hour of 4K) | 15–30 GB | Ideally |
| Current project file, auto-saves, graphics | 1–5 GB | Yes |
| Headroom so macOS stays fast (10–15 percent free) | 30–60 GB | Yes |
| Total working set | 130–275 GB | |
| Original footage for one 4K shoot | 200–400 GB | No |
The last row is the whole argument. One five-hour 4K H.264 shoot is larger than the entire working set, and larger than a 256 GB drive. Footage is capacity, not speed; it is read once per frame you touch and never rewritten, so it belongs on an external SSD, a NAS or a streaming cloud drive. How many hours of video fit in 1 TB shows how quickly any internal drive is overrun by footage of any codec.
Is 512 GB enough?
Yes. A “512 GB” Mac formats to about 494 GB. Take away the working set above at its upper end, 275 GB, and there is still 200 GB spare for a second active project, a season of proxies, or the exports you have not moved yet. Editors who keep footage off the Mac rarely see the storage warning on 512 GB, and when they do, what to delete and what to move clears it in ten minutes.
The one caveat is ProRes. If you cut ProRes 422 HQ and insist on local proxies at 1080p ProRes, proxies alone run 20 GB an hour and a long-form project can push the working set past 300 GB. Use smaller proxy presets, or let a cloud drive generate them.
Is 256 GB enough?
It works, with rules. About 245 GB is usable. After macOS and apps you have roughly 150 GB for everything else. Cap Premiere’s media cache at 20 GB in Preferences, or set Resolve’s render cache to Smart and ProRes 422 LT. Delete render files after every delivered project. Keep proxies for one project at a time. Move exports off the Mac the day they are made. Photos library and iPhone backups go elsewhere.
That is a workable setup for a solo creator cutting 1080p or camera 4K, and an uncomfortable one for anyone juggling three clients at once. If you are choosing a new Mac, the ₹20,000 or so from 256 GB to 512 GB is worth paying. The next steps are not.
Why is the 2 TB Mac the expensive fix?
Because internal storage on a Mac is priced like a premium and consumed like a commodity. In India, going from 512 GB to 1 TB at configure-to-order prices costs roughly ₹20,000 and from 1 TB to 2 TB roughly ₹40,000 more. That ₹60,000 buys about 1.5 TB of extra space that cannot be removed, upgraded or shared, and it fills in three or four 4K shoots. The same money buys four 2 TB external SSDs at about ₹15,000 each, or covers about five years of a 1 TB streaming cloud plan at the ₹999 monthly price, with storage that grows in ₹399 steps of 500 GB when you need it. External SSD vs cloud over three years compares those two routes in detail.
The layout that makes 512 GB last
- Internal SSD: macOS, apps, cache, previews, current proxies, current project file.
- External SSD or cloud drive: all footage, all exports, all delivered projects.
- Editing app settings: scratch disks and cache pointed at the internal drive; media imported from the external path and never moved after import.
Where Driveless fits
Driveless is a streaming cloud drive for Mac, launching in India in January 2027. The footage library mounts in Finder with files showing their real size but taking 0 KB on the Mac, so a 512 GB, or even a 256 GB, Mac holds the working set while terabytes of footage stay in the cloud and stream as Premiere or Resolve touch them. Solo is ₹999 a month for 1 TB, or ₹699 locked for life for founding members who join the waitlist before launch; the pricing page has the rest.
Frequently asked questions
Is 512 GB enough for video editing on a MacBook?
Yes, provided the footage lives on an external SSD, a NAS or a streaming cloud drive. macOS, the editing apps, caches, previews and the current project’s proxies need about 150 to 250 GB, which leaves 512 GB with comfortable headroom. It is not enough if you copy every shoot onto the Mac.
Is 256 GB enough for video editing on a Mac?
It works, with discipline. About 245 GB is usable; after macOS and apps you have roughly 150 GB for cache, previews and proxies. Cap the media cache at 20 GB, clear render files after every project and keep proxies for one project at a time. It is tight but not impossible.
Should I buy the 1 TB or 2 TB Mac for video editing instead?
Usually not. The step from 512 GB to 2 TB costs roughly ₹60,000 in India at configure-to-order prices, buys about 1.5 TB more, and that fills in three or four 4K shoots. A 2 TB external SSD costs about ₹15,000 and a streaming cloud drive grows in 500 GB steps. Spend the money on RAM or the SSD instead.