Can Mac Studio M3 Ultra 96GB run Devstral-Small-2507?
Apple · 96 GB LPDDR5 · 819 GB/s bandwidth ·
Mistral · 23.6B · model ctx up to 128K
Yes — the Mac Studio M3 Ultra 96GB (96 GB LPDDR5) can run Devstral-Small-2507. At Q4 with the default 8K context it needs ≈ 18.7 GB VRAM (weights 12.98 GB + KV cache 4.72 GB + 1 GB runtime overhead), which fits within 96 GB. Decode at Q4/8K: ≈ 22.1 tok/s (estimated, batch 1). FP16 (≈ 52.92 GB) also fits, at ≈ 6.1 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
Quant
Context
VRAM needed
Fits?
tok/s (decode)
Q4
4K
16.34 GB
Yes
22.1est.
Q4
8K default
18.7 GB
Yes
22.1est.
Q4
32K
32.86 GB
Yes
22.1est.
FP16
4K
50.56 GB
Yes
6.1est.
FP16
8K default
52.92 GB
Yes
6.1est.
FP16
32K
67.08 GB
Yes
6.1est.
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).