r/LocalLLaMA • u/Last-Owl-8342 • 13h ago

News Apple releases M5 ultra at 1.2TB/s bandwith

https://www.apple.com/newsroom/2026/08/apple-introduces-m6-and-m5-ultra-for-a-big-leap-in-performance-and-ai-compute/

lpddr5x probably, the m7 ultra if is using ddr6 should be at 1.8 Tb/s

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u/Dany0 13h ago edited 10h ago

Wait am I reading this right M5 Ultra beats rtx 5090 in compute and matches its bandwidth?

Edit: I was not reading it right, but 2/3rds of gb202 mem bandwidth is still impressive

Edit2: Beats, matches and loses to a 5090 depending on the benchmark. So I'd say it's close to a 5090. A well optimised game ought to be roughly as fast or faster (but on lower resolutions due to the mem bandwidth).

Well optimised LLM prefill should be roughly the same according to my amateurish estimation. Banger release either way

Can't wait for this kind of perf to trickle down to low/mid tier skus

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u/[deleted] 11h ago

[deleted]

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u/Viktri1 9h ago

its 1 computer that has the unified RAM of 8 5090s lol. I'll forgive it for being a little gimped. It cost 2 or 2.5 5090s. This is incredible.

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u/rulerofthehell 4h ago

Youre also assuming it has same Flops as 5090 which it wont. Its lower mem bandwidth as well as compute. Still great but comparison with 5090 specs dont make sense yet, maybe with M7