Macrumors iconMacrumorsAug 25, 2026 ~1 min source read

Apple Debuts M5 Ultra as Most Powerful Chip Ever

Apple today announced the M5 Ultra, which the company says is its most powerful chip ever. UltraFusion technology, which is the first time Apple has used a quad-die architecture in an M-series chip.

Apple Debuts M5 Ultra as Most Powerful Chip Ever

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Apple today announced the M5 Ultra, which the company says is its most powerful chip ever.

UltraFusion technology, which is the first time Apple has used a quad-die architecture in an M-series chip.

Engine, with twice the video encode and decode blocks as M5 Max, allowing users to simultaneously play up to 33 streams of 8K ProRes 422 at 30 fps.

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Apple today announced the M5 Ultra, which the company says is its most powerful chip ever. UltraFusion technology, which is the first time Apple has used a quad-die architecture in an M-series chip. The chip includes an CPU with up to 36 cores, containing 12 super cores and 24 performance cores, delivering up to 1.25x higher single-threaded performance and up to 1.3x higher multithreaded performance than the M3 Ultra.

How it works

  • Engine, with twice the video encode and decode blocks as M5 Max, allowing users to simultaneously play up to 33 streams of 8K ProRes 422 at 30 fps.
  • Its GPU scales up to 80 cores, with a Neural Accelerator built into each core for the first time on an Ultra chip.
  • Apple says this delivers up to 4.3x the peak AI compute performance compared to the M3 Ultra, along with up to 1.8x faster graphics than the previous-generation chip.
  • The chip supports up to 512GB of unified memory and up to 1.2TB/s of memory bandwidth, a 50% increase over M3 Ultra.

Details worth keeping

The M5 Ultra is exclusively available in the ne...

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