What wattage power supply does your computer need?
Pick your parts - we will work out the approximate load including processor and graphics card peaks, add a solid margin and show suitable power supplies with today's prices.
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Power supply wattage for popular graphics cards
Calculated with an AMD Ryzen 7 7800X3D, one SSD and two extra fans. Click a card to see its FPS and bottleneck.
| Graphics card Load | Minimum | Recommended |
|---|---|---|
| GeForce RTX 5090 Load: ~938 W | 950 W | 1150 W |
| GeForce RTX 4090 Load: ~788 W | 800 W | 950 W |
| GeForce RTX 5080 Load: ~680 W | 700 W | 850 W |
| GeForce RTX 4080 Super Load: ~632 W | 650 W | 800 W |
| Radeon RX 7900 XTX Load: ~674 W | 700 W | 850 W |
| GeForce RTX 5070 Ti Load: ~608 W | 650 W | 750 W |
| Radeon RX 9070 XT Load: ~613 W | 650 W | 750 W |
| GeForce RTX 4070 Ti Super Load: ~590 W | 600 W | 750 W |
| Radeon RX 7900 XT Load: ~626 W | 650 W | 800 W |
| Radeon RX 9070 Load: ~512 W | 550 W | 650 W |
| GeForce RTX 5070 Load: ~548 W | 550 W | 700 W |
| GeForce RTX 4070 Super Load: ~512 W | 550 W | 650 W |
| GeForce RTX 3080 Load: ~632 W | 650 W | 800 W |
| GeForce RTX 4070 Load: ~488 W | 500 W | 650 W |
| Radeon RX 7800 XT Load: ~564 W | 600 W | 700 W |
| Radeon RX 6800 XT Load: ~608 W | 650 W | 750 W |
| Radeon RX 7700 XT Load: ~542 W | 550 W | 700 W |
| GeForce RTX 5060 Ti Load: ~464 W | 500 W | 600 W |
| Radeon RX 9060 XT Load: ~440 W | 450 W | 550 W |
| GeForce RTX 4060 Ti Load: ~446 W | 450 W | 550 W |
| GeForce RTX 3070 Load: ~512 W | 550 W | 650 W |
| GeForce RTX 3060 Ti Load: ~488 W | 500 W | 600 W |
| Radeon RX 6700 XT Load: ~524 W | 550 W | 650 W |
| Arc B580 Load: ~476 W | 500 W | 600 W |
| GeForce RTX 5060 Load: ~422 W | 450 W | 550 W |
| GeForce RTX 4060 Load: ~386 W | 400 W | 500 W |
| Radeon RX 7600 Load: ~446 W | 450 W | 550 W |
| GeForce RTX 3060 Load: ~452 W | 500 W | 550 W |
| Radeon RX 6600 Load: ~406 W | 450 W | 500 W |
| GeForce RTX 2060 Load: ~440 W | 450 W | 550 W |
| GeForce RTX 3050 Load: ~404 W | 450 W | 500 W |
| GeForce GTX 1660 Super Load: ~398 W | 400 W | 500 W |
Frequently asked questions
What wattage power supply does the NVIDIA GeForce RTX 5060 need?
With an AMD Ryzen 7 7800X3D, one SSD and two fans the system draws up to about 422 W. The smallest unit that carries it is 450 W, and we recommend 550 W.
What wattage power supply does the NVIDIA GeForce RTX 5070 need?
With an AMD Ryzen 7 7800X3D, one SSD and two fans the system draws up to about 548 W. The smallest unit that carries it is 550 W, and we recommend 700 W.
What wattage power supply does the NVIDIA GeForce RTX 5070 Ti need?
With an AMD Ryzen 7 7800X3D, one SSD and two fans the system draws up to about 608 W. The smallest unit that carries it is 650 W, and we recommend 750 W.
What wattage power supply does the NVIDIA GeForce RTX 5080 need?
With an AMD Ryzen 7 7800X3D, one SSD and two fans the system draws up to about 680 W. The smallest unit that carries it is 700 W, and we recommend 850 W.
What wattage power supply does the AMD Radeon RX 9070 XT need?
With an AMD Ryzen 7 7800X3D, one SSD and two fans the system draws up to about 613 W. The smallest unit that carries it is 650 W, and we recommend 750 W.
How we calculate it
- We multiply the processor TDP by 1.4 (boost peaks) and the graphics card by 1.2 (short spikes), add ~60 W for the motherboard, RAM and peripherals, plus a few watts each for drives and fans.
- Minimum wattage = the load rounded up to the next 50 W: anything smaller cannot carry the system, and this one runs it with no headroom at all.
- Recommended wattage = load + 20% headroom, rounded to the nearest 50 W - or the recommendation from the graphics card manufacturer, if that is higher.
- If the graphics card uses 12VHPWR (RTX 40/50 series), choose an ATX 3.0/3.1 unit with a native connector, no adapters.
The figures are approximate - the real load depends on the specific models and the type of workload.