Qwen3.5 122B (10B active)
on 2× heterogeneous GPUs total: Radeon 8060S + NVIDIA RTX 5070 Ti 16GB · llama.cpp / Vulkan (build unreported)
Summary
User reports Qwen3.5-122B-A10B at 19.9 t/s generation and 270.1 t/s prompt processing on a Radeon 8060S plus an RTX 5070 Ti over OCuLink.
Setup is llama.cpp Vulkan with UD-Q4_K_XL, full offload, flash attention, and a 95/5 Radeon-to-RTX tensor split.
The headline is the first completed interior split; the same sweep reached 21.79 t/s generation at 80/20, and the all-APU 100/0 endpoint gave 19.46 t/s.