What PSU do you need for an RTX 4070 Ti?
The RTX 4070 Ti draws up to about 285W under full load. On its own that only tells half the story — your total system power (and so the PSU you need) depends just as much on your CPU, drives and cooling. This page sizes a supply for the RTX 4070 Ti paired with a Ryzen 7 7800X3D; if your parts differ, the calculator gives your exact number in seconds. This card also uses the newer 12V-2x6 (12VHPWR) power connector, so an ATX 3.1 supply is the safe choice.
Paired with a Ryzen 7 7800X3D, this build draws about 495W at peak (285W GPU + 120W CPU + system). A 1000W unit runs it at ~50% load. Absolute minimum: 600W.
| GPU RTX 4070 Ti / Ti Super | 285W |
| CPU Ryzen 7 7800X3D | 120W |
| Motherboard + RAM + drives + fans Rest of system | 90W |
| Total peak draw | 495W |
⚡ The RTX 4070 Ti uses a 12V-2x6 (12VHPWR) connector — choose an ATX 3.1 PSU with a native cable.
→ Adjust for your exact buildRecommended power supplies
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FAQ
Is a 600W PSU enough for an RTX 4070 Ti?
It's the bare minimum, but we'd recommend 1000W. This build peaks around 495W, and a 1000W unit keeps it near 55% load — the efficiency sweet spot — with headroom for the GPU's transient spikes.
What efficiency rating should I get for an RTX 4070 Ti?
80+ Gold or Platinum. It's the best balance of price and efficiency for a build this size. Never pair a good GPU with a cheap unrated PSU.
Does the RTX 4070 Ti need a 12VHPWR cable?
Yes — get an ATX 3.0/3.1 PSU with a native 12V-2x6 connector rather than using the pigtail adapter that ships with the card.