llamaperf

Qwen 3.5-9B / ROCm native PP512 TG128

on AMD Strix Halo 128GB · llama.cpp / ROCm HIP / benchmark build unknown

AMD hardware
Oct 13, 2026
Throughput
23.1 t/s gen · 1130.6 tokens/s prompt processing (prefill)Prompt processing measures input prefill speed; it does not tell you the time to first token.
Quant
Q8_0 (GGUF)
System RAM
128 GB

Summary

User reports Qwen3.5-9B at 23.1 t/s generation and 1130.6 t/s prompt processing on an AMD Strix Halo 128GB machine. Setup is llama.cpp's llama-bench with Q8_0 and -ngl 999, run through docker compose on ROCm 7.2.1. The two figures come from separate synthetic phases: PP 512 at 1130.63 +/- 21.38 t/s and TG 128 at 23.11 +/- 0.03 t/s, where the second phase is 128 single-token steps rather than a real 128-token answer. No TTFT was measured.