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Heh, I have a last gen MBP 16” with i9. It’s basically never an i9, because once it hits 70°C it starts throttling quite rapidly and then stays stuck between 1
by sgjohnson 5y ago
Heh, I have a last gen MBP 16” with i9.
It’s basically never an i9, because once it hits 70°C it starts throttling quite rapidly and then stays stuck between 1.0 and 1.4 GHz clock speed for at least 5 minutes, and what good is an i9 running at 1 GHz?
Their laptop cooling has been absolute dogshit for the past (at least) 10 years.
It’s more of an inadequate cooling combined with Intel releasing CPUs that run just hotter and hotter.
I can’t wait to upgrade to a 16” MBP with an M1 Max (or next gen if they release it by then). There are still some essential tools in my workflow that don’t work all that great on ARM.
- donut2d 5y agoSo I had a thermal problem with my 2018 15" i7 MBP that sounds very similar to what you describe. Temps hit 60° and then get heavily throttled. It started happening after a repair to the keyboard. After dealing with that for 6 months I brought it in to Apple and they fixed the issue by replacing the mainboard, I think. Since it's very rare I see throttling for my use cases (compiling, some gaming).
- no1lives4ever 5y agoIf your i9 16” throttles down to 1 or 1.4ghz, then most likely it is clogged with dust. Open the bottom cover and clean both the heat sink and the Fan blades properly. I need to do this to my 16” i9 once every 3-4 months to prevent it from throttling under load. Interestingly, sharing an external screen using google meet and running something like npm install will easily throttle the CPU even if the CPU usage never shows anything above 15% of use.