What PSU do you need for a NVIDIA GeForce RTX 5070?
The NVIDIA GeForce RTX 5070 has a vendor-published board power (TGP/TBP) of about 250 W. Sizing a power supply from that figure and a typical companion system (a 125 W-class CPU plus standard ATX accessories, ~242 W), here is what we recommend.
Recommendations are planning estimates, not electrical or purchasing advice. The hardware figures behind them are vendor-published; your exact board-partner model and build can still differ.
Recommended (comfortable)
650 W
Standard headroom for transient spikes and a little future room.
Minimum
550 W
Smallest quality PSU tier we would pair with this card in a typical build.
GPU board power
250 W
Vendor TGP/TBP — a conservative ceiling, not typical gaming draw.
Vendor-recommended PSU
650 W
The wattage the GPU vendor lists — deliberately conservative.
Power connector
1× 16-pin 12V-2x6 (12VHPWR-compatible). Use native PSU cables and confirm the layout on your exact board-partner model. See connector & ATX 3.x details →
Why 650 W for this card
The NVIDIA GeForce RTX 5070's draw is not flat. Brief spikes above the rated board power are normal, and they are short enough that a wall meter never shows them — but a power supply sitting close to its limit can trip on one. That is what the headroom in these figures is for: 250 W is the sustained ceiling, not the worst instant. Because this card feeds from a 16-pin 12V-2x6 socket, prefer a supply with a native 12V-2x6 cable rather than an adapter bundle — ATX 3.x units ship one, and it removes a join from the highest-current path on the card. At 250 W a quality unit of the recommended wattage handles transients without drama; an ATX 3.x supply adds margin but is not essential. We do not publish a spike figure for the NVIDIA GeForce RTX 5070 because the manufacturer does not publish one.
On the recommended 750 W supply, a Ryzen 7 9800X3D paired with the NVIDIA GeForce RTX 5070 draws roughly 529 W under load — about 71% of the unit's rating. The 80 PLUS programme certifies efficiency at 20%, 50% and 100% load, and units are typically at their best around the middle of that range, so this sits in a sensible place: enough margin for transients without paying for capacity that never gets used.
Our comfortable figure and the manufacturer's recommendation agree exactly at 650 W. That is the easy case — a quality 650 W unit covers this card in a typical build.
Pairing this card with different CPUs
The CPU does change the answer here. With a Ryzen 5 7600 this build sits on a 650 W supply, but moving to a Ryzen 7 9800X3D (162 W peak) pushes the estimate to 750 W. If you are pairing this GPU with a high-power CPU, budget for the larger unit.
| CPU | CPU peak | System load | Recommended PSU |
|---|---|---|---|
| Ryzen 5 7600 | 88 W | 455 W | 650 W |
| Ryzen 7 9800X3D | 162 W | 529 W | 750 W |
| Core i9-14900K | 253 W | 620 W | 850 W |
Other popular choices map onto this table rather than changing it: the Ryzen 7 7800X3D has the same 162 W peak as the Ryzen 7 9800X3D, so that row applies to it unchanged; a Core i5-14600K (181 W peak) lands on the same 750 W tier as the Ryzen 7 9800X3D; a Ryzen 9 9950X (230 W peak) lands on the same 750 W tier as the Ryzen 7 9800X3D.
Assumes an ATX board, 2 RAM sticks, 1 SSD, 3 fans and a USB allowance, at the standard headroom profile. Change any of it in the calculator.
Cabling this card
This card uses the 16-pin 12V-2x6 connector. NVIDIA's own instruction is to ensure the plug is fully inserted and seated flush against the receptacle — a partially seated 16-pin plug is the failure this connector is known for, and it fails under exactly the sustained 250 W load this card produces. Route the cable so nothing forces it sideways at the plug, and prefer a native cable from an ATX 3.x supply over an adapter chain.
Want a number for your exact CPU and parts? Open the full PSU Calculator with this GPU pre-selected →
The standards behind these numbers
- How much PSU headroom do you actually need?
Why the recommendation above sits above the 250 W board power rather than on it.
- 12VHPWR vs 12V-2x6: what actually changed
What the revised 16-pin socket on this card does when a plug is not fully seated.
- ATX 3.0 vs ATX 3.1: do you need a new PSU?
Whether an existing ATX 3.0 supply is a problem for a card in this power class.
How to check this figure
Read from the “GeForce RTX 5070” column of the spec comparison table on NVIDIA’s family page (the page covers several cards; this figure is that column only).
Board-power source: NVIDIA official specification page (AI-assisted verification, 2026-07-08). Last updated: 2026-07-20.
Frequently asked questions
What size PSU do I need for a NVIDIA GeForce RTX 5070?
For a typical build that pairs the NVIDIA GeForce RTX 5070 (about 250 W board power) with a 125 W-class CPU and standard accessories, plan for at least a 550 W power supply. A 650 W unit gives comfortable headroom for transient spikes and future upgrades. These are estimates — verify against your exact parts.
How much power does the NVIDIA GeForce RTX 5070 draw?
Its vendor-published board power (TGP/TBP) is about 250 W. That is a conservative ceiling used for PSU sizing, not the typical draw you would see while gaming.
Is a 650 W PSU enough for a NVIDIA GeForce RTX 5070?
NVIDIA GeForce RTX 5070's manufacturer lists a 650 W PSU recommendation. That figure is deliberately conservative to cover weaker units and power-hungry CPUs, so a quality 650 W supply is a safe choice. Our own estimate for a typical build is a 550 W minimum and 650 W for comfort.
Does the CPU change what PSU the NVIDIA GeForce RTX 5070 needs?
Yes. With a Ryzen 5 7600 the estimate is 650 W, while a Core i9-14900K (253 W peak) takes it to 850 W.