AnalysisOpinion / analysisHardware & Compute · Efficiency & Inference1 source · Oct 11, 2026

M5 Ultra Mac 256GB Studio - 64 core vs. 80 core version, is the inference speed difference worth the extra 10 weeks wait time?

I’m seeing 6-7 week delivery wait time for M5 Ultra Mac Studio 64 core version versus 15-17 weeks for 80 core version.

Proof1 community thread

Key points

  • They both Ultra and have the same memory bandwidth.
  • Is the speed difference that noticeable for prompt processing and token generation?
  • Is it worth the $1200 price difference and extra 10 weeks wait time?
  • I don’t think I’ve seen inference stats for the 60 core version from anyone.

Sources (1)

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