‘High Power Mode’ Comes to All M4 Pro Macs
The High Power Mode on Macs with Apple’s M4 Pro and M-series Max chips appears to start that cooling process proactively, which is why Cunningham observed more fan noise without any change in performance. If you want to get top performance out of a chip like the M4 Pro for as long as possible, it’s best to keep it cool from the very start.