Qwen3.5-4B · Q4_K_M
This page aggregates 1 real-world runs of Qwen3.5-4B (Q4_K_M) on NVIDIA RTX Spark with Ollama, contributed by 1 independent source platforms; metrics are averages of published measurements.
76.41 tok/s
Decode
Decode speed
245.09 tok/s
Prefill
Prefill speed
2.35 s
TTFT
Time to first token
8.99 GB
VRAM
VRAM usage
1
Measured runs
1
Independent sources
Other
Source platforms
17 days ago
Last verified
Performance
- llama.cpp · Q4_K_M Decode 90.26 · Prefill 398.49 ·
- llama.cpp · Q5_K_M Decode 71.83 · Prefill 346.83 ·
- llama.cpp · Q8_0 Decode 64.66 · Prefill 241.03 ·
- Ollama · FP16 Decode 40.67 · Prefill 196.29 ·
- Ollama · Q5_K_M Decode 69.06 · Prefill 289.88 ·
- Ollama · Q8_0 Decode 56.21 · Prefill 286.64 ·
- llama.cpp · Q3_K_S Decode 110.57 · Prefill 596.61 ·
- Ollama · Q4_K_M (current)Decode 76.41 · Prefill 245.09 ·
Core figures
- Decode (avg)
- 76.41 tok/s
- Prefill (avg)
- 245.09 tok/s
- TTFT (avg)
- 2.35 s
- VRAM (avg)
- 8.99 GB
- MTP acceptance rate
- —
- TTFB
- 0.61 GB
- Power draw
- 57.2 W
Configuration
Member-level fields are taken from the most recent run
- Model
- Qwen3.5-4B
- Quantization
- Q4_K_M
- Framework
- Ollama
- Version
- v0.23
- Context length
- 2048 tokens
- Batch size
- 256
- GPU layers
- 33
- Flash Attention
- Off
Hardware
Nominal and measured figures are shown side by side; whether it runs is the reader's call
- GPU
- NVIDIA RTX Spark
- Nominal VRAM
- 128 GB
- Measured VRAM (avg)
- 8.99 GB
- OS
- Windows 11 24H2
- Driver
- NVIDIA 590.10
- CUDA
- 13.0
- Power draw
- 57.2 W
- Reference price
- $2,399 · updated 2026-10-19
Prices are not live; check the store page
Sources & evidence
1 measured records in total, each traceable to its original source
v0.23 · Windows 11 24H2 · CUDA 13.0 · 2048 ctx
76.41 tok/s
Decode
245.09 tok/s
Prefill
2.35 s
TTFT
8.99 GB
VRAM
—
MTP
57.2 W
Power draw
L2 batch seed 2026-10-19: Ollama on hw_id=110 running model_id=48 at Q4_K_M