Best PSU for Ryzen 9 7900X 2024

Our picks for the best power supply units for the Ryzen 9 7900X

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While not a flagship, the Ryzen 9 7900X sits up there with the 7950X. It’s one of the better processors offered by AMD in its current lineup of 7000 series CPUs. While you might go balls to the wall on the processor and GPU front, it would be a mistake to not get a befitting PSU for your beastly AMD processor. The Ryzen 9 7900X features a staggering 12 cores with 24 threads, and AMD claims the CPU draws only 170 watts of power.

With a whopping 64 MB of L3 Cache and a base clock of 4.7 GHz that boosts up to 5.6 GHz, the 7900X stands tall, competing with Intel’s best offerings. While the 7900X is rated at a TDP of 170 watts, it manages to draw an immense 230 watts under full load, as seen from the PPT limit. This is a staggering 60 watts more in contrast to the rated TDP. So, here’s a taste of our top PSU picks for the Ryzen 9 7900X.

What PSU Do I Need For The Ryzen 9 7900X?

There are multiple factors to consider before choosing a suitable power supply for the Ryzen 9 7900X. While AMD claims a TDP of 170 watts, that’s far from the truth. When stressed under intense load, the 7900X manages to draw a total peak power of 230 watts, running at its boost frequency of 5.6 GHz.

Keeping this in mind, you’ll have to allocate a significant overhead buffer of nearly 100–150 watts. Also, factor in the GPU you’re using and allocated headroom for it. Pair both with a sweet overclock and consider the number of peripherals connected to your motherboard, and you could expect a TDP of anywhere between 800–1000 watts. And if you aim to go a bit modest, you can expect your peak power draw to be 500–650 watts.

Best High-End PSU: EVGA SuperNOVA 1000 G5

EVGA SuperNOVA 1000 G5

Wattage

1000W

Certification

80+ Gold

Modular?

Fully Modular

Pros
  • Small size
  • Safety features
  • 10-Year warranty
  • 80 Plus Gold
Cons
  • Expensive
  • No Standby mode

The EVGA SuperNOVA 1000 G5 is your best bet when choosing a PSU for a high-end Ryzen build. It comes packed with tons of safety features and ensures reliability due to the high-density Japanese capacitors tucked inside. Overall, you get a pretty nifty modular power supply rated at 80 Plus Gold. In addition, you get a 10-year warranty.

Runner-Up: Seasonic SSR-1000TR Prime Titanium

Seasonic SSR-1000TR Prime Titanium

Compatible Devices

Personal Computer

Output Wattage

1000

Form Factor

ATX12V

Pros
  • Micro-tolerance load regulation
  • 80 Plus Titanium
  • 12-year warranty
  • Hybrid Cooling
Cons
  • Extremely expensive

Up next on the list is Seasonic’s 80 Plus Titanium PSU, though it’s a bit on the pricier side. You get all the top-of-the-line features in this PSU. It excels at almost every metric from ripple suppression, voltage deviation, and load regulation. You get high-quality Japanese capacitors packed into this beefy PSU along with a longstanding 12-year warranty.

Best Budget-Friendly PSU: Be Quiet! Pure Power 11 FM 750W

Be Quiet! Pure Power 11 FM 750W

Output Wattage

750

Cooling Method

Air

Item Dimensions LxWxH

13 x 10 x 4 inches

Pros
  • 80 Plus Gold
  • Fully Modular
  • Good Ripple Suppression
  • Noiseless Operation
Cons
  • Short Warranty
  • No Japanese components

If you’re planning on either playing CPU-intensive games, streaming on a daily, or running CPU-intensive tasks but want a mid-range GPU such as the RTX 3060, then you’re better off going with the budget-friendly approach for your PSU. Be Quiet’s PSU offers excellent load regulation on a 12V rail. It skimps out on Japanese capacitors though and has a warranty of only 5 years. But on the flip side, it’s 80 Plus gold-rated and offers exceptional value for the price point.

In Summary

The Ryzen 9 7900X is a power-hungry CPU, and you really need a competent PSU to handle all that zest. Thankfully, our top PSU picks for the 7900X won’t disappoint you.

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