Best Wattage for AMD Ryzen 9 5900X PSU?

Started by archer123n on May 02, 2024

PSU 5900X

I'm building a PC with an AMD Ryzen 9 5900X CPU and need some advice on the best wattage power supply (PSU) to get. Any suggestions?

Solved by Buddhistwalrus in post #6
Yeah, @mbarrado, your setup sounds like it falls into the mid-tier category. Based on the TechReviewer article Choosing the Best Power Supply for AMD's Ryzen 9 5900X CPU I read, you should be looking for a PSU with 450-750 watt capacity. That should cover your needs nicely!

The best wattage for your AMD Ryzen 9 5900X PSU really depends on the components you're planning to use. Generally, a power supply with between 600 and 900 watts should suffice, but it's important to account for other factors too. Have you checked out this TechReviewer article Choosing the Best Power Supply for AMD's Ryzen 9 5900X CPU? It might be helpful!

Thanks for the suggestion, @stefanezer. I have read that article and it seems like a 750-1650 watt PSU would be ideal for top-tier components, while a 450-750 watt PSU is recommended for mid-tier components. My question is, how do you decide which category your components fall into?

Hey @archer123n, that's a good question! In general, top-tier components usually include the highest-end graphics cards and other high-performance parts. Mid-tier components would be more budget-friendly or slightly lower performance parts. What kind of components are you planning to use in your build?

I'm going with some mid-tier components for now - an Nvidia RTX 3060 GPU, a decent motherboard, and a couple of SSDs. Would that classify as mid-tier?

Yeah, @mbarrado, your setup sounds like it falls into the mid-tier category. Based on the TechReviewer article Choosing the Best Power Supply for AMD's Ryzen 9 5900X CPU I read, you should be looking for a PSU with 450-750 watt capacity. That should cover your needs nicely!

Solution

Great, thanks @Buddhistwalrus! One more question though - is there any recommended buffer or extra wattage to account for future upgrades?

Absolutely, @archer123n. It's always a good idea to add an extra 100-150 watts as a buffer for future expansion and reliability purposes. This way, you won't need to worry about exceeding your PSU's capacity if you decide to add more components down the line.

That's really useful advice, @stefanezer. I think I'll go with a 600 watt PSU then.

Sounds like a solid choice, @mbarrado! Good luck with your build and enjoy your new PC!