40+tok/s - optimized recipe for Qwen 3.5 122B Int4 on a single DGX Spark with vLLM

Reddit r/LocalLLaMA Tools

Summary

User shares an optimized recipe for running Qwen 3.5 122B Int4 on a single DGX Spark with vLLM, achieving over 40 tokens per second. They invite others to try and further optimize it.

Hello guys, two days ago i ran the spark-arena for my Qwen 3.5 122B Recipe on a single DGX Spark and I got the highest score on speed for any context length and concurrency across all 3.5 122B Int4 Recipes. Just wanted to share if somebody wants to try, play around with it and optimize it further. [https://spark-arena.com/benchmark/sub1779146508448](https://spark-arena.com/benchmark/sub1779146508448) https://preview.redd.it/pz2dr3n4fb2h1.png?width=1099&format=png&auto=webp&s=40f078ae3df597545d08ed3df008f84873acca6a
Original Article

Similar Articles

Qwen3.6 27B Pure Quant: 40 tok/s on 16 GB VRAM

Reddit r/LocalLLaMA

A quantized version of Qwen3.6 27B using a pure Q4_K_M method fits entirely in 16 GB VRAM, achieving up to 40 tok/s token generation speed with MTP, and significantly reducing model size compared to other GGUF variants.

Running Qwen3.6 35b a3b on 8gb vram and 32gb ram ~190k context

Reddit r/LocalLLaMA

The author shares a high-performance local inference configuration for running Qwen3.6 35B A3B on limited hardware (8GB VRAM, 32GB RAM) using a modified llama.cpp with TurboQuant support, achieving ~37-51 tok/sec with ~190k context.