llamaperf

Qwen3 32B

on M3 Ultra 512GB · MLX · 1,024 ctx

Apple hardware
Sep 26, 2026
Throughput
31.2 t/s gen
Quant
Q4 (MLX)
KV cache
FP16
System RAM
512 GB

Summary

User benchmarks Qwen 32B at 31.2 t/s generation on 1K context using an M3 Ultra 512GB. Setup is MLX with Q4 quantization and FP16 KV cache, batch size 1, 256 generation tokens, median of 3 trials. The post reports a systematic sweep of 5 models, 6 quants, and 7 context lengths (276 runs total), showing generation drops to 8.5 t/s at 128K context and prompt processing falls from ~345 t/s at 1K to ~154 t/s at 128K.