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Can Mac Studio M3 Ultra 96GB run Qwen2.5-32B-Instruct?

Apple · 96 GB LPDDR5 · 819 GB/s bandwidth · Alibaba · 32.8B · model ctx up to 128K

Yes — the Mac Studio M3 Ultra 96GB (96 GB LPDDR5) can run Qwen2.5-32B-Instruct. At Q4 with the default 8K context it needs ≈ 25.6 GB VRAM (weights 18.04 GB + KV cache 6.56 GB + 1 GB runtime overhead), which fits within 96 GB. Decode at Q4/8K: ≈ 15.9 tok/s (estimated, batch 1). FP16 (≈ 73.16 GB) also fits, at ≈ 4.4 tok/s (estimated). Estimates come from memory-bandwidth math; rows tagged measured override estimates. Relative ranking is more reliable than absolute tok/s. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K22.32 GBYes15.9 est.
Q48K default25.6 GBYes15.9 est.
Q432K45.28 GBYes15.9 est.
FP164K69.88 GBYes4.4 est.
FP168K default73.16 GBYes4.4 est.
FP1632K92.84 GBNo13.3 est.

Fits = weights + KV(ctx) + 1 GB overhead ≤ 95% of VRAM. Measured anchors are context-agnostic; the fit verdict is recomputed per context. A missing tok/s means the model is far beyond this card (offload-only territory).

VRAM breakdown at 8K context

QuantWeightsKV cacheOverheadTotal neededMac Studio M3 Ultra 96GB VRAM
Q418.04 GB6.56 GB1 GB25.6 GB96 GB
FP1665.6 GB6.56 GB1 GB73.16 GB96 GB

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