Best PSU for RTX 3080 Ti: Match the 3080 Ti PSU Requirements

Get the right 3080 Ti power supply with our buyer’s guide!

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The power supply unit is a crucial component in any computer, and having the best PSU for RTX 3080 Ti PC builds is vital. Though it has been surpassed by the newer RTX 4000 series, the 3080 Ti is still a formidable GPU that many custom PC users still use. If you are reconfiguring or starting from scratch on a new PC build, you’ve come to the right place, as we break down the 3080 Ti power supply requirements, and the best PSUs to match them!

RTX 3080 Ti PSU Requirements

NVIDIA recommends a minimum of a 750W PSU for use with the RTX 3080 Ti, though this is quite low by modern PSU standards. We always recommend a level of headroom for longevity with your 3080 Ti power supply. As a result, we recommend PSUs all around the 850W mark, in order to give your PC optimum power performance both now and in the future.

Best PSU for RTX 3080 Ti: Corsair RM850x

Corsair RM850x

Wattage

850W

Certification

80+ Gold

Modular?

Fully Modular

Pros
  • Perfect wattage
  • Affordable
  • Efficient
Cons
  • Poor cable quality

For the perfect middle ground between performance, price and preparation; the Corsair RM850x is the best 3080 Ti power supply. As a leading manufacturer of the best power supply units, Corsair PSUs are always sterling choices for any PC build. At 850W and with 80+ Gold certification, the RM850x is powerful and efficient, giving you plenty of headroom for a future upgrade should the time come. The fully modular design makes cable management a breeze, and the price has largely not changed since release – keeping this product as one of the best value-for-money models on the PSU market. For surpassing the 3080 Ti power supply requirements without going overboard, the RM850x is the ideal choice of power supply!

Best Efficient PSU for RTX 3080 Ti: Seasonic Prime TX-850

Seasonic Prime TX-850

Wattage

850 W

80 Plus certification

Titanium

Modularity

Fully modular

Pros
  • Ideal wattage
  • Efficiency powerhouse
  • Fanless cooling
Cons
  • Higher-than-average price

For the more energy-conscious PC gamer, the Seasonic Prime TX-850 is a highly efficient PSU that gives you plenty of power for a 3080 Ti PC build. With a fully modular and fanless cooling system, this PSU will always run cool and quiet. Another 850W PSU, the ideal wattage for the 3080 Ti, the major selling point of the TX-850 is its 80+ Titanium certification: this means that the TX-850 is hyper-efficient and will keep running costs incredibly low. Whilst the upfront cost of use is a little higher than average, and certainly not suitable as a budget PSU, it is still the best long-term investment in power supply for the 3080 Ti and beyond!

Best 750W PSU for RTX 3080 Ti: EVGA SuperNOVA G2

EVGA SuperNOVA G2 750W

Wattage

750W

Certification

80+ Gold

Modular?

Fully Modular

Pros
  • Long-lasting PSU
  • Great power efficiency
Cons
  • Higher-than-average price

Though there are higher-wattage PSUs available on the market, most will be overkill as a 3080 Ti PSU. If you are looking for reduced wattage at a premium, then the EVGA SuperNOVA G2 is an ideal PSU to pair with the 3080 Ti. Fully modular and with an 80+ Gold rating, this 750W power supply unit runs near-silently and with great efficiency. Though it’s a little expensive, the G2 takes up a premium spot in the market and will outlast other, cheaper PSUs. With high efficiency and higher longevity, we highly recommend the G2 as a great 3080 Ti power supply!

Best Budget PSU for RTX 3080 Ti: Thermaltake Toughpower GF1

Thermaltake Toughpower GF1 850W 80+ Gold

Wattage

850 W

Certification

Gold

Modular?

Yes-Fully

Pros
  • Highly affordable
  • Ideal wattage
Cons
  • Poorer build quality

If you are building your new 3080 Ti PC on a budget, then the Thermaltake Toughpower GF1 is the ideal power supply solution. As an 850W 3080 Ti power supply, the GF1 hovers just north of the $100 mark and is ideal for maximum wattage at minimal expense. Like the Corsair RM850x, we saw its value and crowned it as one of the best 850W PSUs on the market. Though the build quality can vary from model to model, the GF1 provides a fantastic overall return-on-investment, and is easily one of the best PSUs for 3080 Ti builds!

Best PSU for RTX 3080 Ti: Which Should I Buy?

With a minimal wattage requirement of 750W, the 3080 Ti PSU requirements are quite liberal. You can use a PSU calculator for your particular PC needs, but more is always better when it comes to wattage. Though you can more than double your 3080 Ti recommended PSU wattage with some high-tier 1600W PSUs, we think that the platonic ideal is 850W: enough to give you upgrade headroom without being overkill.

FAQs

When should I replace my PSU?

Most PSUs are rated for several years of use, and have long-lasting warranties for the best value out of your purchase. However, should your PSU begin to overheat more frequently or you are upgrading to a more demanding GPU, then it should be time to consider a replacement.

Is a Gold-rated PSU good?

Yes: Power supply units are rated on energy efficiency, with most being in the range of Bronze to Gold – though some are Platinum or even Titanium-rated. A Gold-rated PSU is highly competent, ensuring you have power wherever you need it without waste.

In Summary

That concludes our list of 3080 Ti recommended PSUs! Any of these will service you well, providing the power you need at the price you can afford! If you truly want to future-proof your PC, however, consider investing in a larger-scale PSU. We have a guide on the new middle-ground of power supply, check out the best 1000W PSUs now!

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