Best PSU for RX 7900 XTX & XT 2024 – budget, efficiency and more

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The best PSU for the RX 7900 XTX and XT will help you unlock the full potential of your RDNA 3 graphics card.

Now updated for 2023, we revisit the best power supplies for your PC build. Since the RX 7900 XTX and XT have similar power requirements, there isn’t really a difference between the kind of PSU they require. We’ve made some tough choices though, picking between modular and fully modular; chunky or compact; gold or platinum energy efficiency.

For anyone looking for a full PC upgrade might find our article recommending the best CPUs for the RX 7900 XT and XTX helpful. You’ll also find some recommendations for the best cases for the RX 7900 XT graphics cards since these cards can be a little large.

Best PSU for RX 7900 XTX & XT 2023 at a glance

ASUS ROG THOR 1200W 80 Plus Platinum PSU

ASUS ROG THOR 1200W 80 Plus Platinum PSU

Dimensions

190 x 160 x 86 mm

80 Plus Certification

Platinum

Wattage

1200W

Modularity

Fully Modular

Corsair RM750x

Dimensions

6.3 x 5.9 x 3.4 inches

80 PLUS Certification

Gold

Wattage

750W

Modularity

Full

Thermaltake Toughpower GF3 1000W

Thermaltake Toughpower GF3 1200W power supply

Dimensions

85 mm x 160 mm

80 PLUS Certification

80 PLUS Gold

Form Factor

ATX 3.0

Wattage

1000W

Cooling

135 mm Fluid Dynamic Bearing Fan

Modularity

Fully Modular

Evga Supernova 1300W

Asus gtx 1070 with Evga Supernova 1300W power supply.

Dimensions (mm)

86 x 150 x 200

80 PLUS Certification

80 PLUS Gold

Form factor

ATX12V v2.31

Wattage

1300W

Cooling

140 mm Double Ball-Bearing Fan

Modularity

Fully Modular

Cooler Master MWE Gold 850 V2

Cooler Master MWE Gold 850 V2

Dimensions

3.94 x 4.92 x 2.5in

80 Plus Certification

Gold

Wattage

850W

Modularity

Full

Corsair RM850x

Dimensions

86 x 150 x 160

80 Plus Certification

Gold

Wattage

850W

Modularity

Full

The PSU you end up picking will depend on the CPU you’re using too, and whether you overclock your GPU and CPU. You’ll also need to factor in how much headroom you want to have – there’s been a lot of discussion on Reddit about whether a 750W or 850W PSU is better so make sure you’ve decided what’s best for your PC build ahead of committing to a purchase. You’ll find our selections below feature some power supplies not too dissimilar from the best PSUs for the 4090, with some variation. Let’s get stuck in.

Best 1200W PSU for RX 7900 XTX & XT – ASUS ROG THOR 1200W 80 Plus Platinum PSU

ASUS ROG THOR 1200W 80 Plus Platinum PSU

ASUS ROG THOR 1200W 80 Plus Platinum PSU

Dimensions

190 x 160 x 86 mm

80 Plus Certification

Platinum

Wattage

1200W

Modularity

Fully Modular

Pros
  • Near silent operation
  • Premium quality
  • Excellent cooling
  • Aesthetically pleasing with RGB lighting
Cons
  • Goes above and beyond PSU reqirements
  • Bulky

Your graphics card is in safe hands with the ASUS ROG Thor PSU at 12000W. It’s one of the most quiet PSUs you’ll find for 1200W. You also benefit from its OLED screen panel which provides real time updates on you power consumption. This kind of feature is invaluable after spending upwards of $800 on a RX 7900 XTX graphics cards.

This power supply is particularly popular amongst enthusiasts who like to bring a little aesthetic and style to their PC build. Known for their gamer style, the ASUS ROG line has brought RGB to the design, meaning it should look great in any kind of glass or mesh PC case.

Overall, it’s a brilliant piece of kit that will quietly keep everything ticking in your PC case.

Best PSU for RX 7900 XTX & XT – Thermaltake Toughpower GF3 ATX 3.0

Thermaltake Toughpower GF3 1000W

Thermaltake Toughpower GF3 1200W power supply

Dimensions

85 mm x 160 mm

80 PLUS Certification

80 PLUS Gold

Form Factor

ATX 3.0

Wattage

1000W

Cooling

135 mm Fluid Dynamic Bearing Fan

Modularity

Fully Modular

Pros
  • Ideal blending of price and performance
  • Plenty of spare cables for expansion
  • Easy to install
  • Runs almost silent
  • Comes with a PCIe Gen 5 16-pin 12VHPWR connector
Cons
  • Cables are a bit stiff

It’s a great choice of PSU if you’re keen on future-proofing your PC. It’s fitted with the new PCIe 5.0 and has the ATX v3.0, meaning it can double its power for 0.1ms periods without any issues. Though this PSU is noisy, it does the job extremely well. Plus, its dynamic bearing fan helps secure it as a durable choice of PSU.

If that’s not enough, it also comes with a 10 year warranty!

Best power efficient PSU for RX 7900 XTX & XT – EVGA Supernova G2 1300W

Evga Supernova 1300W

Asus gtx 1070 with Evga Supernova 1300W power supply.

Dimensions (mm)

86 x 150 x 200

80 PLUS Certification

80 PLUS Gold

Form factor

ATX12V v2.31

Wattage

1300W

Cooling

140 mm Double Ball-Bearing Fan

Modularity

Fully Modular

Pros
  • Easy installation
  • Quiet operation
  • Gold rated efficiency
Cons
  • Once again, cables can be stiff and difficult to use

This is a brilliant option if you want an energy-efficient PSU with minimal vampire device sucking. It delivers a substantially better performance than the SuperNOVA G2 1000W at just a fraction of price more, making it excellent value in 2023.

It’s fitted with all possible protection features and the maximum operating temperature at which the unit can deliver making it a strong contender in our selection.

Best budget friendly PSU for RX 7900 XTX & XT – Cooler Master MWE Gold 850 V2

Cooler Master MWE Gold 850 V2

Cooler Master MWE Gold 850 V2

Dimensions

3.94 x 4.92 x 2.5in

80 Plus Certification

Gold

Wattage

850W

Modularity

Full

Pros
  • Power efficient
  • Fully modular
  • Quiet running
Cons
  • Cables could be better quality

This PSU has made it onto our best of list for its high temperature resilience and friendly price. It’s one of the most affordable 80 PLUS Gold rated PSUs on the market. It also comes with 2 EPS connectors which ensures it’ll be compatible with your motherboard. Another bonus is it’s quiet to run thanks to its HDB fan plus its fully modular cables will help keep your PC case tidy.

The PSU also comes with plenty of peripheral connectors, even if they are albeit a little short at times. Still though, this PSU will compliment many PC builds thanks to its generous PCIe cables too. Don’t forget to check out the differences between PCIe 4 vs 5 to understand how these two connections vary.

Best versatile PSU for RX 7900 XTX & XT – Corsair RM850x

Corsair RM850x

Corsair RM850x

Dimensions

149 x 149 x 86 mm

80 PLUS Certification

GOLD

Wattage

850W

Modularity

Fully modular

Pros
  • Popular choice suitable for most PC builds
  • Modest 850W helps keep price down
  • Power efficient especially under lighter loads
Cons
  • Slightly older model but still delivers
  • No 12VHPWR connector

A quality choice of PSU for those seeking a versatile and efficient PSU. It has hybrid mode, which means the PSU keeps the fan off until its needed keeping its operation to an almost silent level. This is a highly efficient PSU without the premium features of PSUs like the EVGA SuperNOVA. One drawback is this PSU excludes the new 12VHPWR connector, which means you’ll need an octopus connector that comes with most ATX 3.0 power supplies.

Features to look out for when choosing a PSU for RX 7900 XTX & XT

Wattage

We advise a buffer zone of around 100-150W above your expected usage for much needed flexibility. This will help future-proof your set up, should you buy extra fans and overclocking which can require up to 100W.

An extra word of advice – don’t go above a buffer zone of 150W as your PSU will consume far more power, even when idle (costing you more).

Efficiency

If you opt for a PSU with a higher efficiency rating, you’ll save money in the long term. This is because your PSU will use less energy and produce less heat which means your GPU will be better looked after. Look out for the 80 PLUS certification stamp which indicates a good energy efficiency rating.

If you want to get the most power efficient PSU, you may need to do some sums. We recommend conducting a rough calculation on all your PC components and their power usage to estimate the total Power Supply wattage you need.

FAQs for best PSU for RX 7900 XTX & XT

What is a PSU?

PSU is a Power Supply Unit, or a power supply. The power supply converts electricity or power from your mains electricity and transforms it to the right voltage for your PC to use.

It converts electricity, whilst regulating and maintaining it so that your PC isn’t at danger of being overloaded, or underloaded, with power.

What is ATX 3.0 12VHPWR?

Meet ATX 3.0 which has been introduced to keep up with the increasingly taxing demands in the PC gaming industry. As we enter into more energy uncertainty, the new 12VHPWR connector might be a good shout.

How do I know if my PSU is getting enough power to my graphics card?

There are a couple of warning signs to look out for which include: a downgrade in the performance level of your graphics, flashing dots and lines on your monitor & an unstable system prone to breaking down.

What power supply do you need for RX 7900 XTX?

With a TDP of 355W, you should look at power supplies which exceed at least 850W. Some PC builders may opt for a PSU as high as 1300W if they intend to overclock their CPU or GPU. Others may opt for a 1000W PSU to allow some headroom should the PC go into overdrive. To best prepare yourself for this kind of thing, opt for PSU from a reputable brand that has a screen to monitor the power consumption. One of the power supplies featured in our guide here is the ASUS ROG THOR 1200W 80 Plus Platinum PSU which does exactly that.

About the Author

Romilly Cotta

Romilly is a tech writer for Videogamer. When she's not covering the latest tech and hardware releases, you'll find her taking care of her Nintendogs.