Tested: With Qwen3 27B and Dflash2, a Q4 Draft Model Gives the Biggest Speedup
milpster · reddit · 2026-10-27
A Reddit user shares hands-on findings: when running Qwen3 27B (Q38FN) with Dflash2 (plus strata in their setup) for speculative decoding, the draft model doesn't need Q8 or higher precision. They had an agent build F16, Q8 and Q4 draft models; the Q4 version delivered the biggest speedup with roughly the same acceptance rate. Conclusion: try lower draft-model quants in this configuration.
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