Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

arbitrage

macrumors 6502a
Original poster
Mar 19, 2009
609
206
With all the hoopla around the new MacBook Pro I became aware of the Intel Power Gadget and installed it on my late-2015 5K iMac with the 4.0Ghz i7 (i7-6700K) which is supposed to turbo boost to 4.2GHz.

The IPG never shows it go above 4.0GHz no matter what I throw at it. It just pegs at 4GHz. Is something wrong or is this normal for that processor and I'm not understanding how it should work.

On my 2012 15" rMBP it shows it Turbo Boosting up from 2.7Ghz to about 3.5GHz as it is supposed to (I think it is rated to 3.7 GHz but I'm just doing LR brushes, not video to test it).

What is up with my iMac?
 

cwanja

macrumors 6502a
Jun 23, 2010
742
436
Texas
If I take the .2 GHz you are not worried about on the MBP turbo boosting, why are you worried about them on the iMac?
 

arbitrage

macrumors 6502a
Original poster
Mar 19, 2009
609
206
If I take the .2 GHz you are not worried about on the MBP turbo boosting, why are you worried about them on the iMac?
I just was wondering why it never does any turbo boost at all. Not really worried about 0.2GHz
 

MandiMac

macrumors 65816
Feb 25, 2012
1,431
882
With all the hoopla around the new MacBook Pro I became aware of the Intel Power Gadget and installed it on my late-2015 5K iMac with the 4.0Ghz i7 (i7-6700K) which is supposed to turbo boost to 4.2GHz.

The IPG never shows it go above 4.0GHz no matter what I throw at it. It just pegs at 4GHz. Is something wrong or is this normal for that processor and I'm not understanding how it should work.

On my 2012 15" rMBP it shows it Turbo Boosting up from 2.7Ghz to about 3.5GHz as it is supposed to (I think it is rated to 3.7 GHz but I'm just doing LR brushes, not video to test it).

What is up with my iMac?
I think 4.2 GHz only count if the task you‘re doing is purely single-threaded, means it‘s using only one core.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.