llamaperf

Qwen3.8 27B

on 2× AMD Radeon 780M · Ollama

Tone: mixedAMD hardware
Sep 18, 2026
Throughput
3.2 t/s gen · 32.5 tokens/s prompt processing (prefill)Prompt processing measures input prefill speed; it does not tell you the time to first token.
System RAM
24 GB

Use cases

coding

Summary

User reports Qwen3.8 27B at 3.20 t/s generation and 32.45 t/s prompt processing on a Ryzen 9 7940HS with Radeon 780M iGPU and 24GB RAM. Setup is Ollama on two machines: a Minisforum UM790 Pro and a home build with the same Ryzen 9 7940HS, both with 24GB RAM. The Minisforum run reached 4.73 t/s generation and 20.52 t/s prompt processing. Both runs stopped mid-task and follow-up prompts returned no output. User expected low throughput but not the failures.