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Qwen3.5-27B · IQ1_S

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AMD Radeon RX 7900 XTX24GBStrata v0.24L2 Cross-framework verified

This page aggregates 1 real-world runs of Qwen3.5-27B (IQ1_S) on AMD Radeon RX 7900 XTX with Strata, contributed by 1 independent source platforms; metrics are averages of published measurements.

136.67 tok/s

Decode

Decode speed

575.25 tok/s

Prefill

Prefill speed

1.6 s

TTFT

Time to first token

22.8 GB

VRAM

VRAM usage

L2 Cross-framework verified

1

Measured runs

1

Independent sources

Other

Source platforms

Today

Last verified

Performance

  1. Strata · IQ1_S (current)Decode 136.67 · Prefill 575.25 ·

Core figures

Decode (avg)
136.67 tok/s
Prefill (avg)
575.25 tok/s
TTFT (avg)
1.6 s
VRAM (avg)
22.8 GB
MTP acceptance rate
0.74
TTFB
1.09 GB
Power draw
206.8 W

Configuration

Member-level fields are taken from the most recent run

Model
Qwen3.5-27B
Quantization
IQ1_S
Framework
Strata
Version
v0.24
Context length
8192 tokens
Batch size
512
GPU layers
8
Flash Attention
Off

Hardware

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

GPU
AMD Radeon RX 7900 XTX
Nominal VRAM
24 GB
Measured VRAM (avg)
22.8 GB
OS
Ubuntu 22.04
Driver
amdgpu 6.11
CUDA
12.8
Power draw
206.8 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

    v0.24 · Ubuntu 22.04 · CUDA 12.8 · 8192 ctx

    136.67 tok/s

    Decode

    575.25 tok/s

    Prefill

    1.6 s

    TTFT

    22.8 GB

    VRAM

    0.74

    MTP

    206.8 W

    Power draw

    L2 batch seed 2026-10-18: Strata on hw_id=11 running model_id=50 at IQ1_S