Local AI · Recipe · 2× RTX 3090

Qwen3.8 27B W4A8 with SGLang on 2× RTX 3090

Qwen3.8 27B W4A8 with SGLang on 2× RTX 3090: 76.4 tok/s according to github.com (dataset as of Nov 3, 2026).

by noonghunna

76.4tok/sEveryday

1 request, prose prompt, with MTP

Source: github.com
Intelligence (original model) · Artificial Analysis34with thinkingno thinking 20

Engine

Engine
SGLang 0.5.20
Quantization
Frozenlock INT4, serviert W4A8 + fp8 KV
Model family
Qwen3.8
Context
262,144
Parameters
27B dense
Creator
noonghunna
GitHub stars
2,471
Repo updated
Nov 2, 2026

Measurements

Every sourced value of this recipe, each with its condition and source. Bars relative to the largest value in the group.

Decode · 1 request

  • Everyday (decode)76.4 tok/sNarrativ-Prompt (bench.sh), n=5, ein Boot; K=20, v0.5.20, W4A8, HiCache an; MTP accept len 3.12 Source 
  • Peak (decode)104 tok/sCode-Prompt (bench.sh), n=5, ein Boot; K=20, v0.5.20, W4A8 Source 

Prefill by context

What you need

Hardware
2 × NVIDIA RTX 3090
Weights
Engine
SGLang 0.5.20
Context
262,144 tokens

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