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Can RTX 4080 Super 16GB run Qwen2.5-Coder-14B-Instruct?

NVIDIA · 16 GB GDDR6X · 736 GB/s bandwidth · Alibaba · 14.8B · model ctx up to 32K

Yes — the RTX 4080 Super 16GB (16 GB GDDR6X) can run Qwen2.5-Coder-14B-Instruct. At Q4 with the default 8K context it needs ≈ 12.1 GB VRAM (weights 8.14 GB + KV cache 2.96 GB + 1 GB runtime overhead), which fits within 16 GB. Decode at Q4/8K: ≈ 31.6 tok/s (estimated, batch 1). FP16 needs ≈ 33.56 GB — does not fit on this card. Estimates come from memory-bandwidth math; rows tagged measured override estimates. Relative ranking is more reliable than absolute tok/s. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K10.62 GBYes31.6 est.
Q48K default12.1 GBYes31.6 est.
Q432K20.98 GBNo52.6 est.
FP164K32.08 GBNo6.2 est.
FP168K default33.56 GBNo5.7 est.
FP1632K42.44 GBNo3.5 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 neededRTX 4080 Super 16GB VRAM
Q48.14 GB2.96 GB1 GB12.1 GB16 GB
FP1629.6 GB2.96 GB1 GB33.56 GB16 GB

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