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Can V100 16GB PCIe run Llama-3.1-8B-Instruct?

NVIDIA · 16 GB HBM2 · 900 GB/s bandwidth · Meta · 8.0B · model ctx up to 128K

✅ Yes — V100 16GB PCIe (16 GB) can run Llama-3.1-8B-Instruct at Q4 (8K)
VRAM: 7.0 GB needed of 16 GB
Speed: ~120.9 tok/s (estimated)
AA · GreatComposite 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)
Q44K6.2 GBYes120.9 ± est.
Q48K default7.0 GBYes120.9 ± est.
Q432K11.8 GBYes120.9 ± est.
FP164K17.8 GBNo45.3 ± est.
FP168K default18.6 GBNo41.5 ± est.
FP1632K23.4 GBNo26.2 ± 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 neededV100 16GB PCIe VRAM
Q44.4 GB1.6 GB1 GB7.0 GB16 GB
FP1616.0 GB1.6 GB1 GB18.6 GB16 GB

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