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Qwen3.5-4B · Q4_K_M

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Intel Arc A770 16GB16GBvLLM v0.26L2 Cross-framework verified

This page aggregates 1 real-world runs of Qwen3.5-4B (Q4_K_M) on Intel Arc A770 16GB with vLLM, contributed by 1 independent source platforms; metrics are averages of published measurements.

74.79 tok/s

Decode

Decode speed

395.91 tok/s

Prefill

Prefill speed

1.68 s

TTFT

Time to first token

8.99 GB

VRAM

VRAM usage

L2 Cross-framework verified

1

Measured runs

1

Independent sources

Other

Source platforms

2 days ago

Last verified

Performance

  1. vLLM · Q3_K_M Decode 77.24 · Prefill 250.09 ·
  2. vLLM · Q4_K_M (current)Decode 74.79 · Prefill 395.91 ·
  3. Ollama · Q2_K Decode 90.54 · Prefill 350.46 ·
  4. Ollama · Q5_K_S Decode 56.42 · Prefill 256.71 ·
  5. llama.cpp · Q3_K_M Decode 75.53 · Prefill 384.12 ·
  6. llama.cpp · Q4_K_M Decode 65.4 · Prefill 252.99 ·
  7. vLLM · Q3_K_L Decode 82.73 · Prefill 332.62 ·
  8. vLLM · Q8_0 Decode 45.45 · Prefill 151.34 ·

Core figures

Decode (avg)
74.79 tok/s
Prefill (avg)
395.91 tok/s
TTFT (avg)
1.68 s
VRAM (avg)
8.99 GB
MTP acceptance rate
—
TTFB
0.6 GB
Power draw
184.6 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3.5-4B
Quantization
Q4_K_M
Framework
vLLM
Version
v0.26
Context length
32768 tokens
Batch size
16
GPU layers
999
Flash Attention
On

Hardware

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

GPU
Intel Arc A770 16GB
Nominal VRAM
16 GB
Measured VRAM (avg)
8.99 GB
OS
Windows 11 23H2
Driver
Intel Arc 31.0.101.5186
CUDA
12.6
Power draw
184.6 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

    v0.26 · Windows 11 23H2 · CUDA 12.6 · 32768 ctx

    74.79 tok/s

    Decode

    395.91 tok/s

    Prefill

    1.68 s

    TTFT

    8.99 GB

    VRAM

    —

    MTP

    184.6 W

    Power draw

    L2 batch seed 2026-10-16: vLLM on hw_id=97 running model_id=48 at Q4_K_M