Best PSU for Radeon RX 7900 XTX in 2024 – top power supplies

Thinking of powering up the new graphics card, then here is a good selection

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Updating your power supply may be necessary if your graphics card is among the most recent generations of flagship models, such as the AMD Radeon RX 7900 XTX, but what is the best PSU for Radeon RX 7900 XTX? Check whether your present PSU can handle the advancements offered by AMD’s latest generation of GPUs, codenamed RDNA 3 or Radeon RX 7000, if you want to ensure that everything runs well and steadily. We’d suggest either the EVGA SuperNOVA 850 GA or Corsair RM850x if you just want a couple of quick suggestions.

AMD places a high emphasis on performance per watt. Therefore RDNA 3 offers a lot of power for a relatively modest amount of processing power. Even then, a reliable PSU is necessary to make sure everything functions properly. Let’s jump straight into our top picks – which we keep updated on a regular basis.

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Best PSU for Radeon RX 7900 XTX in 2024

Any of the PSUs listed below will work well if you’re using the AMD Radeon RX 7900 XTX in your upcoming build, but if you’d like to see some other options, be sure to check out our line-up of the best PSUs for gaming available right now. Other excellent choices for an 850W PSU if you don’t like our features below include the cost-effective Cooler Master MWE Gold 850 V2 and the Be Quiet! Straight Power 11 Platinum 850W, though they may be harder to find these days.

EVGA SuperNOVA 850 G6

EVGA SuperNOVA 850 G6

Wattage

850W

80 Plus certification

Gold

Modularity

Fully modular

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Pros

• Eco mode switch on PSU
• Fully modular
• 850W power handles RX 7900 XTX
• 80 Plus Gold rating is efficient

Cons

• Slightly more expensive than others

Although EVGA stopped producing GPUs, it is still active and continues to provide quality power supplies in addition to other parts. The EVGA Supernova 850 G7 is one illustration of these superb components. A good processor and the RX 7900 XTX can both be supported by this 850W Gold Plus PSU, which is efficient good value for money.

EVGA are known for producing some of the most reliable power supplies on the market, which is perhaps best demonstrated by the fact these components come with a long-last 10 year warranty. Additional features include the eco mode for quiet operation and power-on self testing. The build quality is fantastic and the compact 140mm size means it is a great fit to most PC cases. Cable management is a breeze too due to the fully modular design. Overall, a hard PSU to beat if you want a high-end card like the 7900 XTX – nothing too overkill either.

Corsair RM850x

Corsair RM850x

Wattage

850W

80 Plus certification

Gold

Modularity

Fully Modular

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Pros

• Solid gold efficiency rating
• Fully modular design
• 850W suitable for RX 7900 XTX
• Good value for money and reliable build quality

Cons

• No eco mode

The Corsair RM850x is a wonderful choice if you’re looking for a decent 850W PSU for a build that is more focused on cost. This power supply is 850W Gold rated. You’re taking a tiny risk here considering there are Platinum or Titanium-rated PSUs out there for better efficiency – not to say that Gold is a reliability by any means. Regardless, it only costs roughly $130 at the time of writing, and Corsair has an excellent reputation for its cooling and power solutions.

Despite the lack of an eco switch like the EVGA option, it does offer minimal fan noise during low to medium workloads thanks to the zero RPM design (which in effect only utilizes high fan speeds when needed). Again, this is a fully modular option – which we would always recommend if you want a clean build (semi-modular at the very least). Lastly, this is another PSU which offers 10 year warranty, so the RM850x should last you for some time to come, potentially including further upgrades.

Seasonic FOCUS GX-1000

Seasonic FOCUS GX-1000

Capacity

1000W

Efficiency

80+ Gold

Modularity

Fully-modular

Form factor

Standard ATX

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Pros

• More than enough power for 7900 XTX
• Full modular and fits in any ATX case
• Hybrid mode for fanless operation
• Runs quiet

Cons

• 80+ Platinum/Titanium rating would preferable
• Pricier

Looking for something more on the powerful side? The Seasonic FOCUS GX-1000 is a wonderful 80+ Gold alternative if you have some extra cash to spend. It is ready to power up enthusiast gaming systems and is quiet and dependable. It is also pretty pricey, though it is good value for money considering the wattage. Seasonic are well-known for manufacturing top-notch power supplies, and this choice is no exception. There are a bunch of features which give in the edge against alternatives – not just higher wattage.

Just like our other picks, it is fully modular. Don’t think the 1000W power means it’s too big either, as it is 140mm deep and will fit in your ATX case. This Seasonic PSU also benefits from a hybrid mode, meaning you can switch to a fanless design at the flick of a switch for silent operation. While the 7900 XTX only really recommends 800W, the extra headroom is nice to have if you’re using a custom SKU, overclocking, using dual GPUs, or fitting in a high-end CPU to match – also gives you more wiggle room for upgrades in future.

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How we test

Now when it comes to reviewing our best-ofs, there is a lot of consideration towards what we recommend. We’ve had the experience in the industry to know what to look for when looking at the different choices. Especially what manufacturers have to offer in their line-up.

We also have a lot of testing experience, able to put products through intensive and careful tests to see how they perform. But when it comes to parts we can’t get a hold of, we look at other reviews and stats. Basing it off of the general consensus and how well they are rated.

Things to consider

When looking to buy a power source for your system there are certain features of them to consider. These will offer differences between the models and offer up the differences that may give reason to pick them.

Efficiency

One of the key differences between power supplies is their efficiency ratings. This is how much of the input power actually is turned into the useful power used in your system.

For a long time, this has been shown by the 80 Plus certification company. This rating shows the efficiency of the power supplies in an easy comparison ranging from bronze to titanium.

So if running your PC efficiently and at a lower cost then that might be more important when comparing them.

Wattage

Another key feature of the power supply is how much power it actually produces. The wattage of the power supply is how much power it will provide across its cables. So it is an important factor for your entire system.

Adding up the requirements of your entire system is a necessity. And even though the GPU may recommend a wattage, there are other components that may increase how much you should provide.

So you have the option of picking just the recommended amount or upping that to have a bit more of a safety net.

Best PSU for 7900 XTX FAQs

What is the recommended PSU for a 7900 XTX?

The 7900 XTX has a recommended power supply rating of 800W for your entire system.

What is the 7900 XTX wattage?

The 7900 XTX is rated at 355W.

Final word

The Radeon 7900 XTX is AMD’s flagship card of the 7000 series, so it’s no surprise to see it require a solid amount of power to unlock its potential. Nothing quite on the level of Nvidia’s RTX 4090, but plenty for you to consider a power supply upgrade. Our selection features some of the best on the market right now to pair with your new GPU, so take a look and see what’s out there.