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Can H100 80GB SXM5 run Qwen3.6-27B?

NVIDIA · 80 GB HBM3 · 3350 GB/s bandwidth · Alibaba · 27.8B · model ctx up to 256K

✅ Yes — H100 80GB SXM5 (80 GB) can run Qwen3.6-27B at Q4 (8K)
VRAM: 16.98 GB needed of 80 GB
Speed: ~76.7 tok/s (estimated)
SS · ExcellentComposite score: VRAM headroom × 0.5 + tok/s speed × 0.5. Q4 @ 8K context.
CUDA
Estimates from memory-bandwidth formula; rows marked "measured" override. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K16.64 GBYes76.7 ± est.
Q48K default16.98 GBYes76.7 ± est.
Q432K19.07 GBYes76.7 ± est.
FP164K56.95 GBYes21.1 ± est.
FP168K default57.3 GBYes21.1 ± est.
FP1632K59.38 GBYes21.1 ± 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 neededH100 80GB SXM5 VRAM
Q415.29 GB0.7 GB1 GB16.98 GB80 GB
FP1655.6 GB0.7 GB1 GB57.3 GB80 GB

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