Best PSU for RTX 3070: Top Picks for RTX 3070 Power Supply

Looking for an RTX 3070 power supply? Make sure you choose right, with our guide on the best power supply options!

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Though it has been superseded by NVIDIA’s newer 4070 series, the RTX 3070 is still a reliable GPU that is still worth considering, especially for first-time PC builders. But if you are new to the world of custom computing, you may be wondering what the best PSU for RTX 3070 PCs could be. Though the 3070 power supply requirements are quite easy to match, finding the right PSU can be a struggle.

We’ve put together a list of some of the best PSUs for the 3070, along with recommendations on what to look for when purchasing one. Whether you’re a computing veteran looking to build a mid-range PC, or putting together your first build on a budget, we’ve got the right 3070 PSU for you!

RTX 3070 Power Supply Requirements

According to NVIDIA, the minimum RTX 3070 power requirements start at 650W, with the GPU itself taking on 220W of that power. Whilst a PSU with this wattage will be sufficient for your PC build, it will limit future upgrades that you may want to make. Very few of the more recent GPUs have a power supply requirement lower than 700W. Irrespective of your plans to upgrade, we always recommend a PSU with slightly higher wattage, in order to best prepare your PC for future replacement parts. In this guide, we will recommend slightly higher-specification 3070 power supply choices, for a range of budgets and needs. Regardless of your requirements, you’ll find a corresponding PSU to suit your needs!

Best PSU for RTX 3070: EVGA SuperNOVA 1000 G5

EVGA SuperNOVA 1000 G5




80+ Gold


Fully Modular

  • Superb wattage
  • Great efficiency
  • Expensive
  • Overkill for low-to-mid-range PCs

For sterling wattage in a great package, the EVGA SuperNOVA G5 is our top choice as a future-proof PSU for the RTX 3070. Boasting an impressive 1000W power capacity and 80+ Gold certification, this is one of the best-value PSUs on the market. Though nearly doubling the RTX 3070 minimum PSU requirements may seem like overkill, especially with an added price increase, the G5 makes the most of the investment. Guaranteed to last you all through the 3070’s lifetime and beyond, the G5 is our top pick for the best PSU for the RTX 3070!

Best Mid-Range PSU for RTX 3070: Thermaltake Toughpower GF1

Thermaltake Toughpower GF1 850W 80+ Gold


850 W





  • Ideal wattage
  • Hyper-efficient
  • Near-silent running
  • Higher-end of price spectrum

A more balanced option for PSU longevity is the Thermaltake Toughpower GF1. As one of our picks for the best 850W PSUs, this high-value power supply unit pairs fantastically with the RTX 3070. The GF1 has an 140mm hydraulic smart fan that offers great cooling performance without too much noise, and with an 80+ Gold energy efficiency rating, this PSU works great for hyper-efficient power supply to your PC build. The high-quality 100% Japanese capacitors are just added value, and we highly recommend the GF1 as a great 3070 power supply for those who want a bit of extra capacity for their build!

Best SFX PSU for RTX 3070: Corsair SF750

Corsair SF750

Output Wattage


Compatible Devices

Personal Computer

Cooling Method


  • Hyper efficient
  • Small form factor
  • Short cables

If you are looking for an RTX 3070 power supply with a small form factor, Corsair’s excellent range of PSUs will not disappoint. We chose the SF750 above others options due its phenomenal 80+ Platinum efficiency, tightly packaged into a power supply unit that surpasses the 3070 PSU requirements. As a 750W PSU, the SF750 is just a head above the required wattage for the 3070, making it a perfect stop-gap for future upgrades. Though the cables are a little shorter-than-average, this shouldn’t be a problem for SFX PC designers. We highly recommend the SF750 as a small form factor RTX 3070 power supply!

Best Budget PSU for RTX 3070: Corsair RM750x

Corsair RM750x




80+ Gold



  • Great value PSU
  • Highly efficient
  • Poor cable quality

We’re big fans of Corsair PSUs here, and for maxmimum efficiency combined with affordability, we’d be hard-pressed to find a better choice than the Corsair RM750x. Another 750W PSU, this overshoots the 3070 PSU requirements, allowing you to have ample power supply and smooth, silent running. Though its SFX cousin is slightly more energy-efficient, an 80+ Gold rating is far from bad, and for an incredibly valuable price point, it’s hard to find a better budget PSU for the 3070!


How long do PSUs last?

A good PSU can last you for several years, provided it is of high quality and maintained properly. The best PSUs can last for 5 years or even longer in good conditions.

Can the RTX 3070 run 4K?

Yes: If you have a capable monitor to match, the RTX 3070 is capable of running compatible games in 4K.

In Summary

That concludes our top picks for the best PSUs that match the 3070 power requirements! Regardless of your budget, form factor, or upgrade plans; we hope you found the right PSU to super-charge your PC build and keep it working far into the future!

Speaking of upgrades, we also have a guide on the 3070’s advanced sibling model: check out our picks for the best PSU for thr RTX 3070 Ti today!

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