Make Your Mac run Cooler and Faster | CPU TDP Turbo Boost Guide [Advanced]
Learn all about your CPU’s Turbo Boost modes and how to tame your beast in macOS. From how to use Turbo Boost Switcher, Volta and the ultimate TDP setter – VoltageShift.
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Turbo Boost Switcher: http://tbswitcher.rugarciap.com/
Volta: https://volta.garymathews.com/
VoltageShift: https://github.com/sicreative/VoltageShift
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VOLTAGESHIFT TDP
To use VoltageShift you need to allow the use of custom kext (drivers) and the driver needs root permission – which is super admin privileges on Mac, so make sure you’re comfortable with this, before continuing.
So first, restart your Mac into recovery by holding down the Command+R keys on boot.
Go to Utilities – Terminal and type in.
csrutil enable –without kext
Now you either build the project yourself, or download the pre-built library.
The kext file needs root permission – which is super admin privileges.
sudo chown -R root:wheel VoltageShift.kext
To read the current setting
./voltageshift read 0x610
This will give you a value like this
Default 0x4283e800dd8320
Which decoded means the following
0x428 [3e8] 00 dd 8 [320]
0x428 [PL2] 00 dd 8 [PL1]
PL2 is the short term Turbo Limit
PL1 is the long term CPU Power Limit
The values are in HEX so 3e8 = 1000 in decimal
1000/8 = 125
Which means the PL2 is 125W
Armed with this knowledge I personally use a PL2 limit of 60W and a PL1 limit of around 30W.
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