Can the RTX 4070 Ti run Qwen3.5 9B?
Yes. Qwen3.5 9B fits the RTX 4070 Ti's 12 GB at Q4_K_M (about 7.8 GB needed), running at an estimated 67 tok/s. There's room for up to Q8_0 if you want higher quality.
Every quantization
Qwen3.5 9B (9.7B) on 12 GB
| Quant | Weights | Needs | Fit | Est. speed |
|---|---|---|---|---|
| Q4_K_M | 6 GB | 7.8 GB | Fits | ~67 tok/s |
| Q5_K_M | 7 GB | 8.8 GB | Fits | ~58 tok/s |
| Q8_0 | 10 GB | 11.8 GB | Tight | ~40 tok/s |
| FP16 | 19 GB | 20.8 GB | Too big | - |
Estimates. Needs = weights + 1.8 GB for KV cache and runtime at modest context. Speed is single-stream decode scaled from the RTX 4070 Ti's 504.2 GB/s bandwidth (XiongjieDai/GPU-Benchmarks-on-LLM-Inference). Long contexts need more memory and run slower.
Run it
Copy, paste, go
llama-server -hf unsloth/Qwen3.5-9B-GGUF -ngl 99Ollama pulls a Q4 build by default. Pick a larger quant only if the table above says it fits. Full Qwen3.5 9B details →
Compare
Same model, other hardware - and other models on this card
Qwen3.5 9B on other hardware
- RTX 5090~171 tok/s
- RTX 5090 D~171 tok/s
- RTX 6000D~150 tok/s
- RTX 4090~104 tok/s
- Radeon RX 7900 XTX~92 tok/s
- RTX 5080~92 tok/s
- RTX 3090~91 tok/s
- RTX 3080 Ti~87 tok/s
Also runs on the RTX 4070 Ti
- Qwen3 14B~50 tok/s
- Gemma 4 12B~58 tok/s
- Llama 3.1 8B~73 tok/s
- Mistral-7B-Instruct-v0.2~101 tok/s
- Qwen3.5 4B~134 tok/s
- Qwen3-4B-Instruct-2507~201 tok/s
- NVIDIA Nemotron 3 Nano 4B~201 tok/s
- Phi-4 Mini~161 tok/s
Frequently asked
Quick answers
Can the GeForce RTX 4070 Ti run Qwen3.5 9B?
Yes. Qwen3.5 9B fits the RTX 4070 Ti's 12 GB at Q4_K_M (about 7.8 GB needed), running at an estimated 67 tok/s. There's room for up to Q8_0 if you want higher quality.
How much VRAM does Qwen3.5 9B need?
About 6 GB of weights at Q4_K_M, 10 GB at Q8_0 and 19 GB at FP16. Add roughly 1.8 GB for the KV cache and runtime at modest context lengths.
How fast is Qwen3.5 9B on the RTX 4070 Ti?
Roughly 67 tokens per second at Q4_K_M (single user, llama.cpp-style decode). This is an estimate from the RTX 4070 Ti's 504.2 GB/s memory bandwidth.