RTX 5090 meets the minimum VRAM requirement for Q4 inference of unsloth/gemma-3-1b-it. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RTX 5090 can run unsloth/gemma-3-1b-it with Q4 quantization. At approximately 343 tokens/second, you can expect Excellent speed - conversational response times under 1 second.
You have 31GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 1GB | 32GB | 343.32 tok/s | ✅ Fits comfortably |
| Q8 | 1GB | 32GB | 271.14 tok/s | ✅ Fits comfortably |
| FP16 | 2GB | 32GB | 127.06 tok/s | ✅ Fits comfortably |