Qwen3.5 4B
40 consumer GPUs can run Qwen3.5 4B at Q4 natively. Precise VRAM thresholds and benchmarks below.
llama.cpp 0.2.x · CUDA 12 · ROCm 6 · Updated monthly · methodology →
Execution Context
This model requires a Entry GPU (8 GB VRAM)
Cómo ejecutar este modelo
CPU vs GPU for Qwen3.5 4B →
VRAM Calculator — instant compatibility check
RTX 5090
32 GB · Runs Q4 natively · Check availability
*Prices and availability may change. Some links are affiliate links.
System Requirements
VRAM by Quantization
| Quantization | VRAM needed | Disk space | Quality |
|---|---|---|---|
| FP16 (max quality) | 10.3 GB | 9.3 GB | Maximum |
| Q8 (high quality) | 5.1 GB | 4.7 GB | Near-lossless |
| Q4 (recommended) Best balance | 2.6 GB | 2.3 GB | Recommended |
| Q2 (minimum) | 1.3 GB | 1.2 GB | Quality loss |
Model Details
| Developer | Alibaba |
| Parameters | 4.66B |
| Context window | 262,144 tokens |
| License | Apache 2.0 |
| Use cases | chat, reasoning, coding |
| Released | 2026-02 |
Install with Ollama
ollama run qwen3.5:4b Hugging Face
Qwen/Qwen3.5-4B Can your GPU run Qwen3.5 4B?
Qwen3.5 4B requires 2.6 GB VRAM at Q4. 40 consumer GPUs meet this threshold. Below 8 GB or 0.6000000000000001 GB you'll hit significant offload latency.
Hardware Performance Matrix
40 Q4 native · 0 offload · 0 unsupported
| GPU Unit | VRAM | Compatibility | Est. Speed | Action |
|---|---|---|---|---|
| RTX 5090 | 32GB | Optimal | 181 tok/s | Calculate → |
| RTX 4090 | 24GB | Optimal | 156 tok/s | Calculate → |
| M4 Ultra | 128GB | Optimal | 163 tok/s | Calculate → |
| RTX 5080 | 16GB | Optimal | 154 tok/s | Calculate → |
| M3 Ultra | 192GB | Optimal | 138 tok/s | Calculate → |
| RTX 4080 Super | 16GB | Optimal | 121 tok/s | Calculate → |
| RTX 5070 Ti | 16GB | Optimal | 141 tok/s | Calculate → |
| RTX 3090 | 24GB | Optimal | 142 tok/s | Calculate → |
| M4 Max 48GB | 48GB | Optimal | 94 tok/s | Calculate → |
| RX 7900 XTX | 24GB | Optimal | 150 tok/s | Calculate → |
| M4 Max 36GB | 36GB | Optimal | 93 tok/s | Calculate → |
| RTX 4070 Ti Super | 16GB | Optimal | 107 tok/s | Calculate → |
| RTX 3080 Ti | 12GB | Optimal | 131 tok/s | Calculate → |
| RX 7900 XT | 20GB | Optimal | 125 tok/s | Calculate → |
| RTX 5070 | 12GB | Optimal | 107 tok/s | Calculate → |
| RTX 3080 | 10GB | Optimal | 112 tok/s | Calculate → |
| M4 Pro | 24GB | Optimal | 52 tok/s | Calculate → |
| RX 7800 XT | 16GB | Optimal | 97 tok/s | Calculate → |
| RX 6800 XT | 16GB | Optimal | 76 tok/s | Calculate → |
| RTX 4070 | 12GB | Optimal | 79 tok/s | Calculate → |
| RTX 4060 Ti 16GB | 16GB | Optimal | 50 tok/s | Calculate → |
| RX 7700 XT | 12GB | Optimal | 66 tok/s | Calculate → |
| RTX 3070 Ti | 8GB | Optimal | 92 tok/s | Calculate → |
| RTX 4060 Ti | 8GB | Optimal | 50 tok/s | Calculate → |
| RTX 3070 | 8GB | Optimal | 69 tok/s | Calculate → |
| RX 6700 XT | 12GB | Optimal | 57 tok/s | Calculate → |
| M3 Pro | 18GB | Optimal | 32 tok/s | Calculate → |
| RTX 3060 Ti | 8GB | Optimal | 68 tok/s | Calculate → |
| RTX 2080 Ti | 11GB | Optimal | 69 tok/s | Calculate → |
| RTX 3060 | 12GB | Optimal | 57 tok/s | Calculate → |
| M2 Pro | 16GB | Optimal | 36 tok/s | Calculate → |
| RTX 4060 | 8GB | Optimal | 44 tok/s | Calculate → |
| Arc A770 16GB | 16GB | Optimal | 35 tok/s | Calculate → |
| M1 Pro | 16GB | Optimal | 34 tok/s | Calculate → |
| RX 7600 | 8GB | Optimal | 45 tok/s | Calculate → |
| RX 6600 XT | 8GB | Optimal | 42 tok/s | Calculate → |
| Arc A750 8GB | 8GB | Optimal | 32 tok/s | Calculate → |
| RX 6600 | 8GB | Optimal | 38 tok/s | Calculate → |
| RTX 3050 8GB | 8GB | Optimal | 34 tok/s | Calculate → |
| GTX 1660 Super | 6GB | Optimal | 49 tok/s | Calculate → |
Recommended GPUs for Qwen3.5 4B
Best picks by compatibility, VRAM headroom, and value — prices and availability may change.
RTX 5090
32 GB VRAM
Check availability →
RTX 4090
24 GB VRAM
Check availability →
M4 Ultra
128 GB VRAM
Check availability →
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Qwen3.5 4B — Compatibility guide
Qwen3.5 4B can run on CPU without a dedicated GPU — unusual for a 4.66B model. On an i7-13700K with llama.cpp Q4 it reaches 12 tok/s (functional for occasional use). With a GPU you get 4–6× more speed — check the VRAM calculator for specifics.
Compare GPUs for Qwen3.5 4B
Which GPU is worth it? Real specs and benchmarks side by side.
Compatible Hardware
GPUs that run Qwen3.5 4B at Q4 — sorted by AI performance score.
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More Practical Alternatives
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Not sure which GPU you need for Qwen3.5 4B?
The VRAM Calculator tells you exactly which quantization your hardware can handle.