Power-hungry Nvidia GeForce RTX 4090 or RTX 4090 Ti may require a 1,200 W PSU to offer double Ampere performance - News

Either the Nvidia GeForce RTX 4090 or RTX 4090 Ti is likely to come with a TDP rating of 600 W. If accurate, desktop PC builders would have to look into securing at least a 1,200 W-capable power supply unit (PSU) for maximum efficiency. The “Lovelace” RTX 40 series is expected to launch at the end of 2022.

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Power-hungry Nvidia GeForce RTX 4090 or RTX 4090 Ti may require a 1,200 W PSU to offer double Ampere performance - News

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