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Qwen3.8-9B · Q8_0

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NVIDIA RTX 509032GBvLLM v0.44L2 Cross-framework verified

This page aggregates 1 real-world runs of Qwen3.8-9B (Q8_0) on NVIDIA RTX 5090 with vLLM, contributed by 1 independent source platforms; metrics are averages of published measurements.

152.59 tok/s

Decode

Decode speed

801.24 tok/s

Prefill

Prefill speed

0.81 s

TTFT

Time to first token

23.84 GB

VRAM

VRAM usage

L2 Cross-framework verified

1

Measured runs

1

Independent sources

Other

Source platforms

2 days ago

Last verified

Performance

  1. Ollama · Q3_K_S Decode 237.4 · Prefill 1150.93 ·
  2. Strata · Q3_K_L Decode 349.94 · Prefill 1124.59 ·
  3. vLLM · Q3_K_S Decode 286.31 · Prefill 1535.26 ·
  4. vLLM · Q8_0 (current)Decode 152.59 · Prefill 801.24 ·
  5. Strata · IQ1_S Decode 313.75 · Prefill 1522.32 ·
  6. Ollama · IQ4_XS Decode 224.73 · Prefill 806.05 ·
  7. Ollama · Q5_K_S Decode 182.89 · Prefill 696.63 ·
  8. Strata · Q5_K_S Decode 276.86 · Prefill 910.66 ·

Core figures

Decode (avg)
152.59 tok/s
Prefill (avg)
801.24 tok/s
TTFT (avg)
0.81 s
VRAM (avg)
23.84 GB
MTP acceptance rate
—
TTFB
1.22 GB
Power draw
295.9 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3.8-9B
Quantization
Q8_0
Framework
vLLM
Version
v0.44
Context length
4096 tokens
Batch size
16
GPU layers
999
Flash Attention
Off

Hardware

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

GPU
NVIDIA RTX 5090
Nominal VRAM
32 GB
Measured VRAM (avg)
23.84 GB
OS
Windows 11 23H2
Driver
570.86
CUDA
12.8
Power draw
295.9 W

Sources & evidence

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

  1. L2 Cross-framework verifiedOtherOriginal link Verified on 2026-10-16

    v0.44 · Windows 11 23H2 · CUDA 12.8 · 4096 ctx

    152.59 tok/s

    Decode

    801.24 tok/s

    Prefill

    0.81 s

    TTFT

    23.84 GB

    VRAM

    —

    MTP

    295.9 W

    Power draw

    L2 batch seed 2026-10-16: vLLM on hw_id=13 running model_id=52 at Q8_0