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Qwen3-4B-Thinking-2507 · Q4_K_M

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NVIDIA RTX 409024GBvLLM 0.7.3L0 Self-reported

This page aggregates 1 real-world runs of Qwen3-4B-Thinking-2507 (Q4_K_M) on NVIDIA RTX 4090 with vLLM, contributed by 1 independent source platforms; metrics are averages of published measurements.

357 tok/s

Decode

Decode speed

2,677.5 tok/s

Prefill

Prefill speed

0.04 s

TTFT

Time to first token

2.9 GB

VRAM

VRAM usage

L0 Self-reported

1

Measured runs

1

Independent sources

Other

Source platforms

Today

Last verified

Performance

  1. vLLM · Q5_K_M Decode 285.6 · Prefill 2142 ·
  2. vLLM · Q4_K_M (current)Decode 357 · Prefill 2677.5 ·
  3. llama.cpp · Q5_K_M Decode 262.1 · Prefill 1965.8 ·
  4. llama.cpp · Q4_K_M Decode 327.6 · Prefill 2457 ·

Core figures

Decode (avg)
357 tok/s
Prefill (avg)
2,677.5 tok/s
TTFT (avg)
0.04 s
VRAM (avg)
2.9 GB
MTP acceptance rate
—
TTFB
— GB
Power draw
— W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3-4B-Thinking-2507
Quantization
Q4_K_M
Framework
vLLM
Version
0.7.3
Context length
4096 tokens
Batch size
512
GPU layers
99
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)
2.9 GB
OS
Linux
Driver
570.65
CUDA
12.6

Sources & evidence

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

  1. L0 Self-reportedOtherOriginal link Verified on 2026-10-06

    0.7.3 · Linux · CUDA 12.6 · 4096 ctx

    357 tok/s

    Decode

    2,677.5 tok/s

    Prefill

    0.04 s

    TTFT

    2.9 GB

    VRAM

    —

    MTP

    — W

    Power draw

    L0 理论估算(add-500-records-batch2)