Revised Raspberry Pi 5 chip comes with unexpected power savings
Briefly

Eben Upton stated that the new D0 stepping of the chip will reduce the board's production costs by utilizing less silicon thanks to the removed, unused functionality.
Jeff Geerling's tests reveal the 2GB Pi 5 runs cooler and uses less power, with 2.4 W at idle and 8.9 W during stress tests, improving efficiency.
Read at Ars Technica
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