Possible solution for MacBook Pro 2018 i9 throlling
Just spotted it on Reddit, here's a possible solution for the thermal issue on Macbook pro 2018 i9:
Apple has issued a fix for this problem in the App Store / Software update.
Bring peace to your computing life: stop trying to understand Apple.
Ya, that definitely fixed it. Up to 734 on Cinebench with my 2018 13" TB MBP. I'm also still using Macs Fan Control.
Before patch (w/o Macs Fan Control):