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Can Mac Studio M3 Ultra 96GB run Solar Open 2?

Apple · 96 GB LPDDR5 · 819 GB/s bandwidth · Upstage · 250.0B (active 15.0B) · MoE · model ctx up to 1024K

❌ No — Solar Open 2 Q4 needs 138.69 GB, card only has 96 GB
VRAM: 138.69 GB needed of 96 GB
Speed: ~29.0 tok/s (estimated)
FF · No FitComposite score: VRAM headroom × 0.5 + tok/s speed × 0.5. Q4 @ 8K context.
METAL
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Estimates from memory-bandwidth formula; rows marked "measured" override. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K138.69 GBNo29.1 ± est.
Q48K default138.88 GBNo29.0 ± est.
Q432K140.0 GBNo28.6 ± est.
FP164K501.19 GBNo
FP168K default501.38 GBNo
FP1632K502.5 GBNo

Fits = weights + KV(ctx) + 0.5 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
Q4137.5 GB0.38 GB0.5 GB138.88 GB96 GB
FP16500.0 GB0.38 GB0.5 GB501.38 GB96 GB

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