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Qwen3.8-27B · Q2_K

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Apple M5 Ultra512GBOllama v0.45L2 Cross-framework verified

This page aggregates 1 real-world runs of Qwen3.8-27B (Q2_K) on Apple M5 Ultra with Ollama, contributed by 1 independent source platforms; metrics are averages of published measurements.

74.38 tok/s

Decode

Decode speed

283.32 tok/s

Prefill

Prefill speed

1.58 s

TTFT

Time to first token

33.29 GB

VRAM

VRAM usage

L2 Cross-framework verified

1

Measured runs

1

Independent sources

Other

Source platforms

16 days ago

Last verified

Performance

  1. llama.cpp · IQ2_XS Decode 89.58 · Prefill 565.47 ·
  2. Ollama · Q2_K (current)Decode 74.38 · Prefill 283.32 ·
  3. Ollama · Q3_K_S Decode 60.73 · Prefill 250.32 ·
  4. llama.cpp · Q5_K_M Decode 46.8 · Prefill 351 ·
  5. llama.cpp · Q4_K_M Decode 57.1 · Prefill 428.3 ·

Core figures

Decode (avg)
74.38 tok/s
Prefill (avg)
283.32 tok/s
TTFT (avg)
1.58 s
VRAM (avg)
33.29 GB
MTP acceptance rate
—
TTFB
0.6 GB
Power draw
94.7 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3.8-27B
Quantization
Q2_K
Framework
Ollama
Version
v0.45
Context length
4096 tokens
Batch size
256
GPU layers
28
Flash Attention
On

Hardware

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

GPU
Apple M5 Ultra
Nominal VRAM
512 GB
Measured VRAM (avg)
33.29 GB
OS
macOS 26.1
Power draw
94.7 W

Get started

Original model resources

Base model resources may not match this quantization. Use the verified deployment weights above when available.

Sources & evidence

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

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

    v0.45 · macOS 26.1 · 4096 ctx

    74.38 tok/s

    Decode

    283.32 tok/s

    Prefill

    1.58 s

    TTFT

    33.29 GB

    VRAM

    —

    MTP

    94.7 W

    Power draw

    L2 batch seed 2026-10-19: Ollama on hw_id=29 running model_id=5 at Q2_K