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Can H100 80GB SXM5 run gemma-4-12b-it?

NVIDIA · 80 GB HBM3 · 3350 GB/s bandwidth · Google · 11.95B · model ctx up to 256K

✅ Yes — H100 80GB SXM5 (80 GB) can run gemma-4-12b-it at Q4 (8K)
VRAM: 9.96 GB needed of 80 GB
Speed: ~178.4 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)
Q44K8.77 GBYes178.4 ± est.
Q48K default9.96 GBYes178.4 ± est.
Q432K17.13 GBYes178.4 ± est.
FP164K26.09 GBYes49.1 ± est.
FP168K default27.29 GBYes49.1 ± est.
FP1632K34.46 GBYes49.1 ± 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
Q46.57 GB2.39 GB1 GB9.96 GB80 GB
FP1623.9 GB2.39 GB1 GB27.29 GB80 GB

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