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Qwen3.5-4B · Q6_K

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NVIDIA RTX 4070 Ti12GBOllama v0.29L2 Cross-framework verified

This page aggregates 1 real-world runs of Qwen3.5-4B (Q6_K) on NVIDIA RTX 4070 Ti with Ollama, contributed by 1 independent source platforms; metrics are averages of published measurements.

99.87 tok/s

Decode

Decode speed

394.75 tok/s

Prefill

Prefill speed

1.95 s

TTFT

Time to first token

10.5 GB

VRAM

VRAM usage

L2 Cross-framework verified

1

Measured runs

1

Independent sources

Other

Source platforms

Today

Last verified

Performance

  1. vLLM · Q4_K_S Decode 161.78 · Prefill 577.24 ·
  2. Ollama · Q6_K (current)Decode 99.87 · Prefill 394.75 ·
  3. llama.cpp · Q3_K_L Decode 123.86 · Prefill 681.14 ·
  4. Ollama · Q8_0 Decode 68.74 · Prefill 373.18 ·

Core figures

Decode (avg)
99.87 tok/s
Prefill (avg)
394.75 tok/s
TTFT (avg)
1.95 s
VRAM (avg)
10.5 GB
MTP acceptance rate
—
TTFB
0.8 GB
Power draw
262.2 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3.5-4B
Quantization
Q6_K
Framework
Ollama
Version
v0.29
Context length
8192 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
NVIDIA RTX 4070 Ti
Nominal VRAM
12 GB
Measured VRAM (avg)
10.5 GB
OS
Windows 11 23H2
Driver
560.94
CUDA
12.4
Power draw
262.2 W

Sources & evidence

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

  1. L2 Cross-framework verifiedOtherOriginal link Verified on 2026-10-18

    v0.29 · Windows 11 23H2 · CUDA 12.4 · 8192 ctx

    99.87 tok/s

    Decode

    394.75 tok/s

    Prefill

    1.95 s

    TTFT

    10.5 GB

    VRAM

    —

    MTP

    262.2 W

    Power draw

    L2 batch seed 2026-10-18: Ollama on hw_id=42 running model_id=48 at Q6_K