The RTX 4090 can require an extravagant power supply
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| Palit |
The bespoke versions are here to disprove our assumptions about the power needs of Nvidia's RTX 4090, just when we thought we were out of the woods.
While the GPU has been observed operating at very high clock speeds, sometimes exceeding the 3GHz threshold, some of Nvidia's board partners are imposing PSU requirements that are just as demanding. In essence, a 1,200W PSU might be required to power an RTX 4090.
It has been widely assumed for months before the debut of Nvidia's new flagship, the RTX 4090, what kind of power it will need. The outcome was not as bad as some would have predicted. The card has a 450W TBP in Nvidia's own Founders Edition edition, and Nvidia advises needing an 850W power supply to run it comfortably. Of course, that's hardly a conservative figure, but rumors in the past suggested a 1,000W or higher PSU, so this was still encouraging.
Unfortunately, these factors are being brought up again and again by Nvidia's board partners. All of the industry titans, with the exception of EVGA, will be releasing their own versions of the powerful GPU, along with their own recommendations for power supplies.
Tom's Tools examined each of the modified RTX 4090 models that we are currently aware of and generated a list of suggested PSU wattage. Some add-in board (AIB) manufacturers, including MSI, PNY, Galax, and Inno3D, adhere to Nvidia's 850W suggestion. However, some are advocating for more, with one particularly ridiculous suggestion.
For their flagship GPUs, Asus, Gigabyte, and Zotac advise a 1,000W power supply.
Is this level of power actually necessary? Without seeing the card's TBP, which Palit hasn't yet released, it's difficult to say. The remainder of your rig has a significant impact on the wattage needed.
It shouldn't come as a surprise that the minimum PSU wattage is higher than the Founders Edition because non-reference versions frequently push the envelope a little further. It's also possible that GPU manufacturers are attempting to be as safe as possible and don't want to be held accountable if a user uses a PSU that doesn't fulfill the specifications of their entire build. RTX 4090 can require an extravagant power supply
The bespoke versions are here to disprove our assumptions about the power needs of Nvidia's RTX 4090, just when we thought we were out of the woods.
While the GPU has been observed operating at very high clock speeds, sometimes exceeding the 3GHz threshold, some of Nvidia's board partners are imposing PSU requirements that are just as demanding. In essence, a 1,200W PSU might be required to power an RTX 4090.
It has been widely assumed for months before the debut of Nvidia's new flagship, the RTX 4090, what kind of power it will need. The outcome was not as bad as some would have predicted. The card has a 450W TBP in Nvidia's own Founders Edition edition, and Nvidia advises needing an 850W power supply to run it comfortably. Of course, that's hardly a conservative figure, but rumors in the past suggested a 1,000W or higher PSU, so this was still encouraging.
Unfortunately, these factors are being brought up again and again by Nvidia's board partners. All of the industry titans, with the exception of EVGA, will be releasing their own versions of the powerful GPU, along with their own recommendations for power supplies.
Tom's Tools examined each of the modified RTX 4090 models that we are currently aware of and generated a list of suggested PSU wattage. Some add-in board (AIB) manufacturers, including MSI, PNY, Galax, and Inno3D, adhere to Nvidia's 850W suggestion. However, some are advocating for more, with one particularly ridiculous suggestion.
For their flagship GPUs, Asus, Gigabyte, and Zotac advise a 1,000W power supply.
Is this level of power actually necessary? Without seeing the card's TBP, which Palit hasn't yet released, it's difficult to say. The remainder of your rig has a significant impact on the wattage needed.
It shouldn't come as a surprise that the minimum PSU wattage is higher than the Founders Edition because non-reference versions frequently push the envelope a little further. It's also possible that GPU manufacturers are attempting to be as safe as possible and don't want to be held accountable if a user uses a PSU that doesn't fulfill the specifications of their entire build.
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