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Qwen3.5-0.8B · Q8_0

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NVIDIA RTX Spark128GBOllama v0.29L2 Cross-framework verified

This page aggregates 2 real-world runs of Qwen3.5-0.8B (Q8_0) on NVIDIA RTX Spark with Ollama, contributed by 1 independent source platforms; metrics are averages of published measurements.

79.06 tok/s

Decode

Decode speed

361.81 tok/s

Prefill

Prefill speed

0.86 s

TTFT

Time to first token

4.03 GB

VRAM

VRAM usage

L2 Cross-framework verified

2

Measured runs

1

Independent sources

Other

Source platforms

15 days ago

Last verified

Performance

  1. llama.cpp · Q6_K Decode 94.74 · Prefill 304.72 ·
  2. llama.cpp · Q8_0 Decode 76.23 · Prefill 286.92 ·
  3. Ollama · FP16 Decode 57.1 · Prefill 306 ·
  4. Ollama · Q8_0 (current)Decode 79.06 · Prefill 361.81 ·
  5. llama.cpp · Q4_K_M Decode 129.1 · Prefill 701.36 ·
  6. llama.cpp · Q5_K_M Decode 99.17 · Prefill 509.83 ·
  7. Ollama · Q4_K_M Decode 109.43 · Prefill 483.78 ·

Core figures

Decode (avg)
79.06 tok/s
Prefill (avg)
361.81 tok/s
TTFT (avg)
0.86 s
VRAM (avg)
4.03 GB
MTP acceptance rate
—
TTFB
0.64 GB
Power draw
64.1 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3.5-0.8B
Quantization
Q8_0
Framework
Ollama
Version
v0.29
Context length
16384 tokens
Batch size
256
GPU layers
33
Flash Attention
On

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)
4.03 GB
OS
Ubuntu 24.04
Driver
615.78
CUDA
13.0
Power draw
67.2 W
Reference price
$2,399 · updated 2026-10-19

Prices are not live; check the store page

Sources & evidence

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

  1. L2 Cross-framework verifiedOtherOriginal link Verified on 2026-10-20

    v0.29 · Ubuntu 24.04 · CUDA 13.0 · 16384 ctx

    77.03 tok/s

    Decode

    374.65 tok/s

    Prefill

    0.28 s

    TTFT

    4.03 GB

    VRAM

    —

    MTP

    67.2 W

    Power draw

    L2 batch seed 2026-10-20 (Linux 116GiB unlock): Ollama on Spark running model_id=51 at Q8_0
  2. L2 Cross-framework verifiedOtherOriginal link Verified on 2026-10-19

    v0.36 · Windows 11 24H2 · CUDA 13.0 · 8192 ctx

    81.08 tok/s

    Decode

    348.96 tok/s

    Prefill

    1.45 s

    TTFT

    4.03 GB

    VRAM

    —

    MTP

    61 W

    Power draw

    L2 batch seed 2026-10-19: Ollama on hw_id=110 running model_id=51 at Q8_0