Nvidia explains PSU requirements for GeForce RTX 40 series GPU

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Sep 29, 2022.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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  2. Glottiz

    Glottiz Master Guru

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    Nice, hopefully this will make all fear mongers and badly informed people shut up. Who am I kidding, of course not lul
     
  3. RealNC

    RealNC Ancient Guru

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  4. Kool64

    Kool64 Maha Guru

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    the only "real" fear was that the 4090 was going to clock in at 800W so now that's a non issue
     

  5. Solfaur

    Solfaur Ancient Guru

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    We will see how real or not this is 1-2 months after release when plenty of user feedback will be available...
     
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  6. geogan

    geogan Maha Guru

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    I'm really worried about this issue with 4090 cards which I will never buy because they are about 2,500 EUROS in Europe!
     
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  7. mackintosh

    mackintosh Master Guru

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    Well, you might score a used one two years from now, so you never know.
     
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  8. Dragam1337

    Dragam1337 Ancient Guru

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    Exactly, i don't give any credit to anything nvidia says tbh.
     
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  9. H83

    H83 Ancient Guru

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    The 850w minimum for a 4090 seems a little risky, specially because the PSU also needs to feed a thirsty CPU to match such powerful card.
     
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  10. Dragam1337

    Dragam1337 Ancient Guru

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    It's decidedly BS tbh - anyone with just a bit of smarts will use at least a 1000w psu with a 4090.
     

  11. haste

    haste Ancient Guru

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    3x8PIN plugged into a card via new connector, that will definitely not cause any issues...

    These power requirements are getting completely out of hand: 2x8PIN for CPU, 3x8PIN for one GPU, 1x6PIN for USB 60W plus the default MB power cable. And this is supposed to be the minimum for a high end PC today? Ridiculous. At least the electricity prices are dropping.. oh wait
     
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  12. Alessio1989

    Alessio1989 Ancient Guru

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    what was the original pcb come from, an embedded or server solution? that's a lot of time that guy spent for making that joke.
     
    Last edited: Sep 29, 2022
  13. gQx

    gQx Member

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    any news about 40 series mobile versions? what's the release date and when will we see comparison against previous generation?
     
  14. Dragam1337

    Dragam1337 Ancient Guru

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    Guru3d doesn't do laptop reviews, so no. This is the website you want for laptop reviews
    https://www.notebookcheck.net/

    But you can just take any given gpu model and subtract 30%... then you are about where the laptop varient lands.
     
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  15. gQx

    gQx Member

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    racists :) Didn't realise that till now sounds right though thanks
     

  16. Netherwind

    Netherwind Ancient Guru

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    Any word on which CPU is recommended? Digital Foundry have only tested with the 12900K but nVidia themselves have, in their presentations, mentioned the 5900X (which isn't that thirsty).
     
  17. schmidtbag

    schmidtbag Ancient Guru

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    It doesn't really matter what CPU you get because unless you're doing something CPU intensive other than gaming, most CPUs will consume roughly the same amount of power. Either the CPU is bottlenecked by the GPU or you only have a couple of cores that are maxed out (with the rest being practically idle), so no matter what you're probably going to use less than 100W on a modern CPU.
    All that being said, it's 850W minimum. Even if you were to max out a 12900K and a 4090, you're still unlikely to exceed 850W. Of course, you really don't want to be pushing the PSU that hard, so going at least 1KW for such a system is the wiser choice - it's just not a necessity.
     
  18. fantaskarsef

    fantaskarsef Ancient Guru

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    I thought it was clear by now that the growing PSU requirements are not there to actually cope with normal power draw, but transitient spikes.
     
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  19. Reardan

    Reardan Master Guru

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    We don't pick our PSU based on the average expected draw of the computer under a normal workload. You pick your PSU for the worst case scenario, because the pop and smoke is not going to care that its unusual for you to be maxing out both components at the same time, it's just going to care that it happened.
     
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  20. RealNC

    RealNC Ancient Guru

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    Probably 3D printed. He did more jokes like this on his channel.
     

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