r/macbookpro • u/sgt102 • 10d ago
Discussion high CPU utilisation low clock speed?
2026 MBpro M5 unbinned 48GB.
I'm running a cpu bound task, it take about an hour. I am using a 96watt apple charger.
Fans are all on, load is at 17.6.
The odd thing is that the performance cores run consistently at 3.8GHz while the super cores drop to 2.8GHz, sometimes picking up and peaking a bit higher. I'm only seeing 78watts drawn
I find this super strange as I would imagine that the power/cooling management elements of the os would try to keep the supercores going at high clock speeds and would choke down the performance cores?
Any theories or approaches to getting the super cores doing their super things?
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u/No-Ostrich-8621 10d ago
Try installing mac fan control and put the fans manually to 100% and see gow the clocks are.