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Qwen 3.6 27B VLLM benchmarks show NVFP4 excels at token generation, FP8 at prefill

A user on Reddit's r/LocalLLaMA shared benchmark results for the Qwen 3.6 27B model using VLLM. The tests compared performance across different quantization formats: BF16, FP8, and NVFP4. NVFP4 demonstrated the fastest token generation speed, approximately 2.6 times faster than BF16, due to reduced memory bandwidth requirements. FP8 showed superior prompt processing and prefill speed, outperforming BF16 by about 20%, as it leverages Tensor Core acceleration for compute-bound tasks. AI

IMPACT Provides insights into optimal quantization strategies for specific tasks when running large language models locally.

RANK_REASON User-generated benchmark results for an open-source model and inference framework. [lever_c_demoted from research: ic=1 ai=1.0]

Read on r/LocalLLaMA →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Qwen 3.6 27B VLLM benchmarks show NVFP4 excels at token generation, FP8 at prefill

COVERAGE [1]

  1. r/LocalLLaMA TIER_1 English(EN) · /u/live4evrr ·

    Qwen 3.6 27B - VLLM Performance Benchmark Results (BF16, FP8, NVFP4)

    <!-- SC_OFF --><div class="md"><p>Sharing some testing of Qwen 3.6 27B using VLLM across the popular quants on my development system. I used llama benchy to generate the results, then fed it into an LLM to format it the tables for readibility.</p> <p>While NVFP4 is blazing fast, …