Core M 5y10c low clock speed and turbo boost

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SilentDagger

Commendable
May 8, 2016
1
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I recently purchased a Lenovo thinkpad 11e with a core M 5y10c processor. It's clocked at 800Mhz base and turbos up to 2Ghz. Now when I ran Minecraft to put it through it's paces I noticed it rarely clocked above 900Mhz. I don't quite understand Turbo Boost, but I was surprised I wasn't seeing steady a 2Ghz on intel XTU. I have my power set to max performance. I'm cool with my laptop, it works great, but seemingly not running at full potential is disappointing. Is there something i can do to keep it running faster while "gaming". I read that Turbo only turns on for a brief time and shuts an inactive core off? Anyway if someone could explain to me how this works, and if if there is a way I can tweak something in Intel XTU to give me a little better performance. Thanks for your time guys. :)
 
Solution
Ecky
Your CPU is TDP limited to somewhere between 3.5w and 6w. It's normal behavior for such a low power chip to jump to 2ghz for very brief periods, but under sustained loads the clockspeed will stay pretty low to stay within its configured power envelope.

For comparison, a desktop CPU will be configured for somewhere between 50w and 90w, and your CPU is of the same design.
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Ecky

Ecky

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Feb 3, 2013
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Your CPU is TDP limited to somewhere between 3.5w and 6w. It's normal behavior for such a low power chip to jump to 2ghz for very brief periods, but under sustained loads the clockspeed will stay pretty low to stay within its configured power envelope.

For comparison, a desktop CPU will be configured for somewhere between 50w and 90w, and your CPU is of the same design.
 
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Solution
Ryan_78

Ryan_78

Honorable
Jan 17, 2016
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Yep. My school uses those thinkpads. I shiver at the thought. Those are low powered chips , a few watts only, as stated on intels website. It is not,likely for it to turbo to 2 ghz because of the extra power needed, unless it is absolutely needed. I should stay within the 800mhz range
 
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humbucker_blues

Honorable
Feb 23, 2018
7
2
10,525
Core M and Core i ULVs are a bloody pain in the arse to work with. My understanding of (part of) what is happening is the 4.5-6W of sustained power has to be shared between the CPU and GPU, so the CPU has to back off to give the graphics more watts in the game, as opposed to the stress test when it was running at 2GHz but with no GPU load. However, if you install Throttlestop and adjust the CPU/GPU power sharing ratio to give the CPU a bigger share, that may work to boost clock speeds. You might handicap the GPU too much, but it's all trial and error. You should also lower the offset voltage to make both the CPU and GPU use less watts, which should give both chips a bit of extra power to work with; it should also lower the temperatures a few degrees as well. I just did that and I was running benchmark at the same speeds but using 12W instead of 14W on my i5 laptop. Look up undervolting to find out proper guides on how to do it; it's not that hard to do but a bit daunting when you first look at all the options!

Another thing that you can try is to lower the multiplier to get the CPU frequency down to, say, 1.4-1.8GHz, something like that, and it may run steady at that speed - instead of the old 'push push push oh wait I'm overheating better slow down and cool off' method that sometimes happens to Core M devices.

Other things you can do include closing Explorer.exe, and relaunch it with Task Manager to gain some more system resources and a few extra FPS. There are some registry tweaks that are out there to optimize Windows, as well as quite a lot of unnecessary system services that you can disable; again, the guides are easy to find so search away, my friend.
 
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