llamaperf

Qwen3-Coder 30B (3B active)

on M2 Ultra 128GB · llama.cpp

Apple hardware
Oct 13, 2026
Throughput
69.3 t/s gen · 1080.5 tokens/s prompt processing (prefill)Prompt processing measures input prefill speed; it does not tell you the time to first token.
Quant
UD-Q4_K_XL (GGUF)
KV cache
F16
Flash Attention
off
MTP (Multi-Token Prediction)
off
System RAM
128 GB

Summary

User reports Qwen3-Coder 30B-A3B at 69.3 t/s generation and 1080.5 t/s prompt processing on a Mac Studio M2 Ultra with 128GB unified memory. Setup is llama.cpp build 6060 with the UD-Q4_K_XL GGUF and flash attention off, one GPU with -ngl 100 and 16 threads. The figures are separate synthetic llama-bench tests: PP512 and TG128, not a 512-input/128-output request. The same run measured 818.85 t/s PP8192 and 40.35 t/s TG8192.