Asus has provided official power requirements for those purchasing a new RTX 4080 or 4090 graphics card from the company, as well as power requirements for those planning to purchase an RX 7900 XT or 7900 XTX when these RDNA 3 cards are released. in December.
Note that the PSUs rated for these graphics cards depend on the processor you're using them with, as some processors these days can also demand a lot of juice from the PSU, so whatever combo you have in your PC You should keep this in mind.
As @momomo_us reports on Twitter (via VideoCardz - opens in a new tab)), Asus recommends that the RTX 4090 have at least an 850W power supply if you're running an Intel Core i5 or Ryzen 5 processor. Using a Core i7 or Core i9 chip, or Ryzen 7 or 9, this recommendation rises to 1000W. For Intel HEDT (High End Desktop) or Threadripper processors, the power supply must be 1200 W, not less.
For the RTX 4080, the base recommendation is 750W and that applies to Core i5 and i7 models, or Ryzen 5 or 7. For a Core i9 or Ryzen 9, it increases to 850W and 1000W for Threadripper or Intel HEDT .
What about these recommendations for AMD's upcoming RDNA 3 graphics cards? Those looking to get an RX 7900 XT are considering the exact same offering as the RTX 4080: 750W for Core i5 or i7 processors (and Ryzen 5 or 7), then jump to 850W for a Core i9 or Ryzen 9, and 1000 W for a HEDT model.
For the RX 7900 XTX, you're looking at 850 W for a Core i5 or i7 (and Ryzen 5 or 7), and 1000 W when paired with a Core i9 or Ryzen 9 processor. For an HEDT chip, the requirement is 1200 W, just like with the RTX 4090.
Analysis: Compare and contrast with the current generation of AMD
It's interesting to see some official numbers from a graphics card manufacturer for RDNA 3 products, though there are no real surprises here. The RX 7900 XT and 7900 XTX in particular were never going to be anything less than demanding on PC power, but AMD's flagship brings things to the same level as the RTX 4090, with the notable exception that it's more easy for those using Core i7. or Ryzen 7 processors (probably quite a few users, as not everyone feels the need to upgrade to Core i9 or Ryzen 9).
What is perhaps most instructive is comparing incoming AMD graphics cards to their previous models, and it's here that we see the RX 7900 XT take a step up from the 6900 XT. At least for Core i7/Ryzen 7 and Core i9/Ryzen 9 processors, where the 7900 XT requires 100W less and 150W less respectively; that's pretty impressive in comparison. (In fact, the 7900 XT has the same requirements as the 6800 XT, believe it or not.)
There's no direct comparison for the 7900 XTX, but it keeps the same things as the 6950 XT (all except HEDT turf where the new graphics card requires a lot more, 200W to be precise, but those are more specific cases).
So all in all, this is good news for anyone considering a new AMD RDNA 3 GPU in the future, especially given Nvidia's current issues with melting cables and the RTX 4090 (with specs). ).
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