Qwen3.8 27B
on NVIDIA RTX 5090 · Ignis · 512,000 ctx
Use cases
codingagenticlong-contextvision
Summary
User reports Qwen3.8-27B at ~200 tok/s single stream on one RTX 5090.
Setup is Ignis with NVFP4 and DFlash2 speculative decoding (7 draft tokens), 512K context via YaRN x2, KV at 9 KB/token.
Aggregate throughput is >800 tok/s with 8 lanes; image questions cost 60-90 ms each; locate found the right log line 21/23 times at median 2.6 s.