Board Partners Suggest 1000-1200W Power Supplies for the NVIDIA RTX 4090

AIBs have recommended 1000W and 1200W power supplies for their variants of the GeForce RTX 4090. Powered by (up to) 24+4 phases, these GPUs will likely draw over 500W of power under full load, stressing the more robust heatsink designs. It’s unclear whether you’ll lose any performance if you go ahead with a sub-1000W power supply, but you’ll almost certainly run out of overclocking headroom.

I run into system crashes on my GeForce RTX 3080 Ti FE rig when the power slider is pushed past 110%. These issues are more common on the RTX 3090 and the 3090 Ti because of the higher power ceiling. I wouldn’t recommend buying anything less than a 1000W SMPS without even testing the card unless you already have one. (Meta-Calculator)

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Areej Syed

Processors, PC gaming, and the past. I have been writing about computer hardware for over seven years with more than 5000 published articles. Started off during engineering college and haven't stopped since. Mass Effect, Dragon Age, Divinity, Torment, Baldur's Gate and so much more... Contact: areejs12@hardwaretimes.com.
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