Qwen3.8 27B
on AMD RX 9070 XT 16GB · llama.cpp · 131,072 ctx
Sep 28, 2026
Summary
User reports 50 t/s for Qwen 3.8 27B on an RX 9070 XT 16GB.
Setup is llama.cpp (Vulkan build) with a Q6 quant, 131072 context, Q8 K cache and Q4 V cache, and DFlash2 speculative decoding with 7 max drafts.
The rig also has an R9700 AI Pro 32GB and 64GB DDR5 6000; the user asks what speeds and flags others get, especially on Windows/AMD.