i7 6700HQ won't clock above 1.7GHz...

Discussion in 'Dell XPS and Studio XPS' started by antik, Jul 16, 2018.

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  1. antik

    antik Notebook Geek

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    What about executing longer tasks rather than short tasks, say watching a 4K YouTube video in full screen for example...

    With EPP at 128 & Multiplier 35: CPU sits at 2.8GHz, 0.9V, 12W draw & 42C degrees - video is laggy and audio is crackling

    With EPP at 70 & Multiplier 18: CPU sits at 1.8GHz, 0.75V, 9W draw & 38C degrees - completely smooth playback
     
    Last edited: Jul 17, 2018
  2. pressing

    pressing Notebook Deity

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    Whatever works for you. . .
     
  3. custom90gt

    custom90gt Doc Mod Super Moderator

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    I still don't get changing multipliers in TS when you have speed step, it's one or the other.

    I find it hard to believe that 1.8ghz plays videos better than 2.8ghz.
     
  4. antik

    antik Notebook Geek

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    I didn't understand it either, but 1.8GHz with a lower EPP plays video MUCH smoother, cooler and uses MUCH less voltage than 2.8GHz with a higher EPP - you should test it for yourself. I'm assuming that upping the EPP changes many other things than just the multiplier, as it seems to throttle performance significantly, even if running at higher clock speeds.

    Btw, I have SpeedStep disabled - Only SpeedShift is enabled, EPP at 70 & Max multiplier set to 18. Runs extremely efficiently and is still very snappy to use
     
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