Speed Shift only affecting E-Cores.

[AvidGamer]

Hi.

For some reason when using Speed Shift, if I set the max to 35, only the E-Cores are getting set to 3.5Ghz. Take a look at my screenshot.

Is there a way to make it so Speed Shift affects P-Cores as well?

Thanks!

 

[unclewebb]

Show me some ThrottleStop screenshots. Include the main window as well as the FIVR and TPL windows.

 

[AvidGamer]

Here are the images you requested! Thank you so much!

 

[unclewebb]

Speed Shift Max was designed and tested on my 10th Gen CPU which was before the E cores existed. I have never tested Speed Shift Max on any 12th Gen or newer CPU. As for as I know, Speed Shift Max can still be used to control the maximum speed of the P cores. I do not know how or if this ThrottleStop setting limits the speed of the E cores.

A Speed Shift Max setting of 50 used to be exactly equal to 5000 MHz and a setting of 40 was 4000 MHz., etc. On 12th Gen and newer CPUs this relationship no longer seems to be one to one. You should still be able to use Speed Shift Max to control the maximum speed of the P cores. Other users have confirmed this.

If you want to do some testing, run a consistent load like Cinebench. While Cinebench is running, vary the Speed Shift Max value and watch what MHz value ThrottleStop reports for the P and the E cores. Watch the Limit Reasons data while testing to make sure your CPU is not thermal throttling or power limit throttling.

It might be possible to edit the Windows power plan you are using so you can fully control both the P and the E cores. Without access to a computer running Windows 11 or any recent hardware for testing purposes, I have decided to leave the Speed Shift Max feature as is.

 

[AvidGamer]

Here is a screenshot of the main window while using TS Bench. It shows the P-Cores are at 27 and the E-Cores are at around 35. Is there any way to get the P-Cores to go to 35? Is there a special setting to make it the P-Cores get to 3.5 GHz? Thanks.

 

[unclewebb]

It shows the P-Cores are at 27

Did you try increasing the Speed Shift Max value while testing? Your TPL screenshot shows the maximum Speed Shift Max value is 63. That should allow the P cores to run at max speed. You can also set Speed Shift Max to 255. That should accomplish the same thing.

 

[AvidGamer]

Did you try increasing the Speed Shift Max value while testing? Your TPL screenshot shows the maximum Speed Shift Max value is 63. That should allow the P cores to run at max speed. You can also set Speed Shift Max to 255. That should accomplish the same thing.

Okay, so I tried increasing the Speed Shift Max value to 40 and the P-Cores went up to 3Ghz and the E-Cores stayed at around 3.5Ghz. So it looks like P-Cores are actually working properly and the E-Cores are the ones that aren't responding to changes in the Speed Shift Max value. I think this problem is solved. Thank you for your help.