llamaperf

Qwen3.6 35B (3B active)

on AMD Strix Halo 128GB · llama.cpp · 4,096 ctx

AMD hardware
Sep 18, 2026
Throughput
77.9 t/s gen
Quant
UD-Q4_K_XL (GGUF)
Flash Attention
on
System RAM
128 GB

Summary

User reports Qwen3.6 35B-A3B at 77.92 t/s with MTP on an AMD Strix Halo 128GB, versus 53.83 t/s without MTP. Setup is llama.cpp build b11009 with the unsloth UD-Q4_K_XL GGUF at 4096 context, using the Vulkan backend, flash attention, and draft-mtp speculative decoding with spec-draft-n-max 2. The benchmark also covered Nemotron-3.5-Lightning-30B-A3B NVFP4, Qwen3.8 27B OBLITERATED Q4_K_M, GLM-4.5-Air Q4_K_M, Qwen3.8 27B UD-Q4_K_XL, Qwen3.8 Flash-Next UD-IQ4_XS, and Qwen3.6 35B-A3B BF16.