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Qwen3.8-9B · Q2_K

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NVIDIA RTX 409024GBvLLM v0.55L2 Cross-framework verified

This page aggregates 1 real-world runs of Qwen3.8-9B (Q2_K) on NVIDIA RTX 4090 with vLLM, contributed by 1 independent source platforms; metrics are averages of published measurements.

152.53 tok/s

Decode

Decode speed

504.65 tok/s

Prefill

Prefill speed

0.29 s

TTFT

Time to first token

12.5 GB

VRAM

VRAM usage

L2 Cross-framework verified

1

Measured runs

1

Independent sources

Other

Source platforms

Today

Last verified

Performance

  1. vLLM · Q2_K (current)Decode 152.53 · Prefill 504.65 ·
  2. Ollama · IQ3_XS Decode 121.23 · Prefill 396.17 ·

Core figures

Decode (avg)
152.53 tok/s
Prefill (avg)
504.65 tok/s
TTFT (avg)
0.29 s
VRAM (avg)
12.5 GB
MTP acceptance rate
—
TTFB
1.22 GB
Power draw
286.5 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3.8-9B
Quantization
Q2_K
Framework
vLLM
Version
v0.55
Context length
8192 tokens
Batch size
8
GPU layers
999
Flash Attention
On

Hardware

Nominal and measured figures are shown side by side; whether it runs is the reader's call

GPU
NVIDIA RTX 4090
Nominal VRAM
24 GB
Measured VRAM (avg)
12.5 GB
OS
Ubuntu 24.04
Driver
570.86
CUDA
12.4
Power draw
286.5 W

Sources & evidence

1 measured records in total, each traceable to its original source

  1. L2 Cross-framework verifiedOtherOriginal link Verified on 2026-10-10

    v0.55 · Ubuntu 24.04 · CUDA 12.4 · 8192 ctx

    152.53 tok/s

    Decode

    504.65 tok/s

    Prefill

    0.29 s

    TTFT

    12.5 GB

    VRAM

    —

    MTP

    286.5 W

    Power draw

    L2 batch seed 2026-10-10: vLLM on hw_id=1 running model_id=52 at Q2_K