NVIDIA clarifies: RTX 4090 power supply can use 850W power supply
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NVIDIA clarifies: RTX 4090 power supply can use 850W power supply.
As early as before NVIDIA released the RTX 40 series graphics card, there was news that the RTX 4090 graphics card would require a high power consumption of more than 900W, which caused many consumers to worry.
Now, NVIDIA has updated its customer support page, finally clarifying the rumor.
According to NVIDIA’s answer in the FAQ, the TDP of the RTX 4090 is 450W, so NVIDIA’s recommended power supply is at least 850W, while the RTX 4080 (16GB) is only 320W, the recommended power supply is 750W, and the 12GB version only needs 700W.
It can be seen that although the power requirements of the RTX 40 series are indeed improved compared to the previous generation, the magnitude is not as terrible as the rumors. As long as the power supply meets the performance, there is no need to replace it.
In addition, NVIDIA also answered the question of compatibility.
The official said that as long as the power supply meets the minimum power requirements, you can continue to use the current power cord without the need for an adapter.
But at the same time, officials also emphasized that the adapter can tell whether the GPU is plugged into three or four 8-pin connectors.
If four are detected (600W total), it allows the card to unlock more power headroom for overclocking.
Finally, NVIDIA also emphasized that it is best for users to buy power supplies from well-known manufacturers.
Small-brand power supplies may not follow PCI-SIG guidelines and cause unnecessary problems.
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