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Qwen3-8B · Q4_K_M

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NVIDIA RTX Spark128GBOllama v0.50L2 Cross-framework verified

This page aggregates 1 real-world runs of Qwen3-8B (Q4_K_M) on NVIDIA RTX Spark with Ollama, contributed by 1 independent source platforms; metrics are averages of published measurements.

50.41 tok/s

Decode

Decode speed

184.67 tok/s

Prefill

Prefill speed

1.85 s

TTFT

Time to first token

15.88 GB

VRAM

VRAM usage

L2 Cross-framework verified

1

Measured runs

1

Independent sources

Other

Source platforms

17 days ago

Last verified

Performance

  1. llama.cpp · Q4_K_M Decode 51.02 · Prefill 251.27 ·
  2. llama.cpp · Q5_K_M Decode 46.53 · Prefill 174.57 ·
  3. Ollama · Q3_K_L Decode 51.86 · Prefill 267.64 ·
  4. Ollama · Q4_K_M (current)Decode 50.41 · Prefill 184.67 ·

Core figures

Decode (avg)
50.41 tok/s
Prefill (avg)
184.67 tok/s
TTFT (avg)
1.85 s
VRAM (avg)
15.88 GB
MTP acceptance rate
—
TTFB
0.4 GB
Power draw
56.8 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3-8B
Quantization
Q4_K_M
Framework
Ollama
Version
v0.50
Context length
4096 tokens
Batch size
512
GPU layers
99
Flash Attention
Off

Hardware

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

GPU
NVIDIA RTX Spark
Nominal VRAM
128 GB
Measured VRAM (avg)
15.88 GB
OS
Ubuntu 24.04
Driver
NVIDIA 590.10
CUDA
13.0
Power draw
56.8 W
Reference price
$2,399 · updated 2026-10-19

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Sources & evidence

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

  1. L2 Cross-framework verifiedOtherOriginal link Verified on 2026-10-19

    v0.50 · Ubuntu 24.04 · CUDA 13.0 · 4096 ctx

    50.41 tok/s

    Decode

    184.67 tok/s

    Prefill

    1.85 s

    TTFT

    15.88 GB

    VRAM

    —

    MTP

    56.8 W

    Power draw

    L2 batch seed 2026-10-19: Ollama on hw_id=110 running model_id=53 at Q4_K_M