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Mac Studio (M5 Ultra) with 256 GB of RAM review: a dream machine to run local AI agents and a massive leap over M3 Ultra for prompt processing and generation (Federico Viticci/MacStories)

This story is from 2026-09-21. It is preserved in the archive; the latest stories are on the live feed.

Federico Viticci / MacStories : Mac Studio (M5 Ultra) with 256 GB of RAM review: a dream machine to run local AI agents and a massive leap over M3 Ultra for prompt processing and generation For the past few days, I've been testing the (currently) top-of-the-line M5 Ultra Mac Studio with 256 GB of R…

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Timeline · 2 reports

  1. 2026-09-21 15:40 · Techmeme
    Mac Studio (M5 Ultra) with 256 GB of RAM review: a dream machine to run local AI agents and a massive leap over M3 Ultra for prompt processing and generation (Federico Viticci/MacStories)
  2. 2026-09-21 13:00 · Tom's Hardware
    Apple Mac Studio (M5 Ultra) review: Local model citizen outpaces DGX Spark and Threadripper

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