Intel Alder Lake has higher ATX12V peak currents than Rocket Lake

Posted on Friday, August 06 2021 @ 12:51 CEST by Thomas De Maesschalck
A new leak reveals the peak power draw of Intel's upcoming Alder Lake-S processors will be even higher than the Rocket Lake-S generation. On the Asian interwebs, VideoCardz came across a chart that compares the recommended PSU ATX12V capabilities for Intel's 10/11th Gen Core CPUs and the upcoming 12th Gen Core "Alder Lake" chips.

The chart reveals the continuous current and peak current of 35W, 65W, 125W, and 165W models. The latter is provided for informative reasons. Intel never released 165W TDP SKUs of its previous generations, nor is there expected to be a 165W Alder Lake-S. But it provides an idea of extra headroom that may be needed when overclocking.

50W to 100W more peak draw

Power supplies for Alder Lake-S will need to be more powerful as the chips will have a much higher peak draw. Depending on the TDP segment, there's an increase in peak wattage of 12.5% to 28.3%:
In the case of the mysterious 165W TDP SKU, the peak power would increase from 480W to 540W. Other SKUs also see a peak power increase from 14.7% all the way up to 28.3%. The most popular SKUs, which are 65W Core series, would, for instance, see an increase of peak current from 30A to 38.5A, which increased peak power from 360W to 462W.
Intel ATX12V Alder Lake specs

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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