Summary
User reports Qwen3.8-Flash-Next at 160 tok/s single-stream on two Radeon AI PRO R9700 cards.
Setup details, engine, quant and KV cache are not stated in the post.
At 8 concurrent users the user reports 470-630 tok/s aggregate. The user made a quant of the model and posted benchmarks and dev notes, and is looking to compare notes with other R9700 users.