Qwen3.8 125B (6B active) Flash-Next
4× Intel Arc Pro B70 · vLLM · 262,144 ctx
- generation:
- 70.0 tokens/s
- prompt processing (prefill):
- 2800.0 tokens/s
- quant:
- W4A16-AutoRound (AutoRound)
- kv:
- FP8
Reported by the source; GPU count, offloading and concurrent requests can change these figures. Prompt-processing speed is input throughput, not time to first token. Check the full setup before comparing.
User reports Qwen3.8 Flash-Next at ~70 t/s generation and ~2800 t/s prefill on 4x Intel Arc Pro B70 GPUs. Setup is vLLM with Intel's W4A16-AutoRound quant, full 262K FP8 context, prefix caching, and concurrency=2. The user notes an alternative setup reached ~100 t/s generation but only ~1400 t/s prefill and 16-bit context, and considers the doubled prefill and context worth the ~30 t/s generation loss.