Qwen3.8 27B
on NVIDIA RTX 5090 · llama.cpp · 32,768 ctx
Sep 7, 2026
Use cases
creative-writing
Summary
User compares Qwen3.8-27B against Qwen3.6-27B on an RTX 5090.
The user reports prefill and decode speeds at concurrency 1, and finds the subjective quality improvement smaller than benchmarks suggest.
Medium reasoning used fewer tokens than low on 3 of 5 prompts. The concurrency knee sits at 3 requests for Qwen3.8 versus about 7 for Qwen3.6.