2026-09-08 · Ollama · Unsloth · RTX 5080

Same 27B, three quants — only one clears the bar

Head-to-head on Ollama (ctx 4096, thinking off) for the same 27B class.

What happened

QuantGPU residencyApprox speed
Unsloth UD-IQ4_XS100% GPU · ~15.3GB~43 coding tok/s
Library Q4spilled~18 tok/s
Video-like UD-Q4_K_M (~46 GPU layers)spilled worse~7 tok/s

Takeaway

Copying a YouTube layer count is not a plan on 16GB. Promote IQ4_XS for experiments; skip the 46-layer UD-Q4_K_M recipe on this card.

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