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Can Mac Studio M2 Ultra 192GB run Laguna S 2.1?

Apple · 192 GB LPDDR5 · 800 GB/s bandwidth · Poolside · 118.0B (active 8.0B) · MoE · model ctx up to 1024K

✅ Yes — Mac Studio M2 Ultra 192GB (192 GB) can run Laguna S 2.1 at Q4 (8K)
VRAM: 67.4 GB needed of 192 GB
Speed: ~56.3 tok/s (estimated)
SS · ExcellentComposite score: VRAM headroom × 0.5 + tok/s speed × 0.5. Q4 @ 8K context.
METAL
Excellent for 💬 chatExcellent for ⌨️ codingExcellent for 📋 general
Estimates from memory-bandwidth formula; rows marked "measured" override. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K66.65 GBYes56.3 ± est.
Q48K default67.4 GBYes56.3 ± est.
Q432K71.9 GBYes56.3 ± est.
FP164K237.75 GBNo19.9 ± est.
FP168K default238.5 GBNo19.8 ± est.
FP1632K243.0 GBNo19.1 ± est.

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 M2 Ultra 192GB VRAM
Q464.9 GB1.5 GB0.5 GB67.4 GB192 GB
FP16236.0 GB1.5 GB0.5 GB238.5 GB192 GB

Other GPUs that run Laguna S 2.1

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Other models for the Mac Studio M2 Ultra 192GB

All models on the Mac Studio M2 Ultra 192GB →