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Qwen3.5-27B · IQ1_S

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AMD Ryzen AI Max+ 395128GBOllama v0.24L2 Cross-framework verified

This page aggregates 1 real-world runs of Qwen3.5-27B (IQ1_S) on AMD Ryzen AI Max+ 395 with Ollama, contributed by 1 independent source platforms; metrics are averages of published measurements.

109.46 tok/s

Decode

Decode speed

421.76 tok/s

Prefill

Prefill speed

2.43 s

TTFT

Time to first token

25.91 GB

VRAM

VRAM usage

L2 Cross-framework verified

1

Measured runs

1

Independent sources

Other

Source platforms

2 days ago

Last verified

Performance

  1. Ollama · IQ1_S (current)Decode 109.46 · Prefill 421.76 ·
  2. Ollama · Q3_K_S Decode 82.93 · Prefill 370 ·
  3. Strata · Q3_K_L Decode 119.77 · Prefill 539.8 ·
  4. Strata · Q4_K_M Decode 114.2 · Prefill 433.75 ·

Core figures

Decode (avg)
109.46 tok/s
Prefill (avg)
421.76 tok/s
TTFT (avg)
2.43 s
VRAM (avg)
25.91 GB
MTP acceptance rate
—
TTFB
0.88 GB
Power draw
75.6 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3.5-27B
Quantization
IQ1_S
Framework
Ollama
Version
v0.24
Context length
2048 tokens
Batch size
512
GPU layers
28
Flash Attention
Off

Hardware

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

GPU
AMD Ryzen AI Max+ 395
Nominal VRAM
128 GB
Measured VRAM (avg)
25.91 GB
OS
Ubuntu 24.04
Driver
amdgpu-pro 24.20
CUDA
N/A
Power draw
75.6 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

    v0.24 · Ubuntu 24.04 · CUDA N/A · 2048 ctx

    109.46 tok/s

    Decode

    421.76 tok/s

    Prefill

    2.43 s

    TTFT

    25.91 GB

    VRAM

    —

    MTP

    75.6 W

    Power draw

    L2 batch seed 2026-10-16: Ollama on hw_id=24 running model_id=50 at IQ1_S