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# What is the minimum PSU requirement for RTX 4090?

NVIDIA has released the below minimum PSU requirements:

| GPU | PSU TGP | MIN. PSU WATTAGE |
| ---- | ---- | --- |
| GeForce RTX 4090 | 450W | 850W |
| GeForce RTX 4080 16GB | 320W | 750W |
| GeForce RTX 4080 126GB | 285W | 700W |