Best PSU for RTX 4070 in 2024 (650W, 750W, 850W)

These are the best power supply units for your new RTX 4070 graphics card

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Finding the best PSU for the RTX 4070 can be a relatively easy task with the TDP coming in way under the other current GPU releases from Nvidia. This means we can offer a selection of affordable, high-quality PSUs, that will take care of all your power needs in your new PC or upgrade. With that in mind, we’ll keep this guide updated to ensure that the top picks reflect just that.

The RTX 4070 is an excellent piece of hardware to represent the mid-range, with the previous iteration (RTX 3070) being an excellent mid-range offering for years. The Nvidia GPU features the latest 40-series enhancements, putting a bit of life back into the mid-tier of system building. The mid-tier market feels a little more reinvigorated and we found the best PSU for the job to be the reliable Corsair RM750x – though we do want to consider the EVGA SuperNOVA 850 GA for future-proofing.

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Best PSU for RTX 4070 in 2024

As we’ve mentioned in the introduction, the RTX 4070 is quite flexible in terms of the kind of power supply you need to pair it with. So, we’re going to feature a few different PSUs which work well – from the very best, to a more budget-friendly option. Let’s get to it.

Corsair RM750x

Corsair RM750x

Wattage

750W

Certification

80+ Gold

Modular?

Fully

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Pros

• Reliable
• Effcient
• Fully modular

Cons

• Premium price tag

When it comes to reliability and quality at a reasonable price, Corsair is a go-to for most system builders. This RM750X model covers all your power needs with some headroom.

The build quality is exceptional from Corsair and these models come with some nice additional features. You get low noise, zero RPM fan mode for quiet operation and this PSU is fully modular, making any build or upgrade a bit easier. This model is rated for Gold efficiency and comes with an extensive warranty.

EVGA SuperNOVA 850W

EVGA SuperNOVA 850 GA

Wattage

850 W

80 Plus certification

Gold

Modularity

Fully modular

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Pros

• More than enough wattage for RTX 4070
• Gold efficiency rating
• Ideal for upgrading in future
• Fully modular

Cons

• 850W is overkill for 4070

Yes, 850W is overkill for the RTX 4070 but if you are building a system for the next 10 years and picture a GPU upgrade within that time, you may want a PSU that fits.

With a gold-efficient certificate and fully modular makeup, you have everything you need to power your gaming PC for the years ahead. Modularity isn’t a necessity, however, it can make building or upgrading a PC a bit easier.

EVGA 650 Bq

EVGA 650 Bq

Wattage

650W

Efficiency

Bronze

Modularity

Semi Modular

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Pros

• Affordable price tag
• Realiable
• Semi modular

Cons

• Bronze efficiency rating

We feel 650W is going to be more than enough for your new RTX 4070 GPU but you should be aware that with the current rate of hardware, this wattage may be pushing it in a few years.

EVGA is a highly recommended brand in the PSU world and this Bronze-rated model is very reliable and offers reasonable quality at an affordable price point.

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RTX 4070 power consumption

The RTX 4070 has a fraction of the power consumption compared to the Ti variant and almost half when compared to the older RTX 3080. This is because of the vast improvements around efficiency in previous generations and the smaller node size. For further comparison, the RTX 4070 has a TDP of 200W, whereas last gen’s 3070 is a little higher at 220W. You’ll find that the RTX 4070 is one of the most efficient GPUs on the market, which is impressive considering the kind of performance you can get from it.

What wattage PSU do you need for RTX 4070?

The RTX 4070 is rated for 200 Watts meaning if you already have a PSU 600W and above, you will be fine. Our recommendations will also reflect a bit of headroom. the power demands of this new GPU are even less than the previous iteration, which is thanks to the efficiency leaps Nvidia has made with its new architecture.

This means that nothing above 750W is probably overkill unless you have very specific needs, like plan to upgrade to a flagship GPU in the next two years.

Do you need an ATX 3.0 PSU for RTX 4070?

No, you do not need an ATX 3.0 PSU for the RTX 4070 – though some 4070 models do feature that connectivity as an option, albeit more rare. These PSUs feature the addition of the 16-pin 12VHPWR connector. The new connector allows for up to 600Wpower delivery to a graphics card and is only really advised for the RTX 4070 Ti and above (especially the RTX 4090) or future generations. Even with those higher models, adapters are available if you don’t have an ATX 3.0 PSU.

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Best PSU for RTX 4070 FAQs

Is a 750 watt PSU enough for a 4070?

Yes, it is more than enough, powering everything you need with some extra headroom.

Does the RTX 4070 Ti use more power than the RTX 4070?

Yes, while both GPUs are rated for low TDP usage, the RTX 4070 Ti is around 60W higher.

Final word

So there you have it, our best PSU for RTX 4070 takes into consideration a few different options and presents you with a choice to make. The RTX 4070 is an impressive card when it comes to power draw and efficiency, leaving you open for a cheaper option if you wish. That being said, future-proofing should always been taken into account when buying a PSU – it is one of the more time-consuming components to replace, after all