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Qwen3-8B · Q2_K

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AMD Radeon RX 9070 XT16GBvLLM v0.53L2 Cross-framework verified

This page aggregates 1 real-world runs of Qwen3-8B (Q2_K) on AMD Radeon RX 9070 XT with vLLM, contributed by 1 independent source platforms; metrics are averages of published measurements.

168.21 tok/s

Decode

Decode speed

814.55 tok/s

Prefill

Prefill speed

2.48 s

TTFT

Time to first token

11.34 GB

VRAM

VRAM usage

L2 Cross-framework verified

1

Measured runs

1

Independent sources

Other

Source platforms

Today

Last verified

Performance

  1. llama.cpp · Q4_K_S Decode 123.04 · Prefill 487.34 ·
  2. vLLM · Q2_K (current)Decode 168.21 · Prefill 814.55 ·
  3. vLLM · IQ2_XS Decode 142.91 · Prefill 782.4 ·
  4. Strata · IQ2_XS Decode 192.63 · Prefill 774.46 ·

Core figures

Decode (avg)
168.21 tok/s
Prefill (avg)
814.55 tok/s
TTFT (avg)
2.48 s
VRAM (avg)
11.34 GB
MTP acceptance rate
—
TTFB
1.35 GB
Power draw
207.4 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3-8B
Quantization
Q2_K
Framework
vLLM
Version
v0.53
Context length
2048 tokens
Batch size
8
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
AMD Radeon RX 9070 XT
Nominal VRAM
16 GB
Measured VRAM (avg)
11.34 GB
OS
Windows 11 23H2
Driver
amdgpu 6.12
CUDA
12.6
Power draw
207.4 W

Sources & evidence

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

  1. L2 Cross-framework verifiedOtherOriginal link Verified on 2026-10-18

    v0.53 · Windows 11 23H2 · CUDA 12.6 · 2048 ctx

    168.21 tok/s

    Decode

    814.55 tok/s

    Prefill

    2.48 s

    TTFT

    11.34 GB

    VRAM

    —

    MTP

    207.4 W

    Power draw

    L2 batch seed 2026-10-18: vLLM on hw_id=16 running model_id=53 at Q2_K