XPS 13 i3 performance

Discussion in 'Dell XPS and Studio XPS' started by huai, Jan 30, 2015.

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  1. huai

    huai Notebook Consultant

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    I have an xps 13 with i3 on order. Today I saw 2 reports of i3 model being permanently throttled yo 500 MHz. One report on dell support community page and one here in the owners thread. This obviously makes me nervous.

    Does anyone elsr have the i3? How is your performance?
     
  2. einhander

    einhander Notebook Deity

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    i wonder why they would do it intentionally if they didnt for the i5
     
  3. huai

    huai Notebook Consultant

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    I can't imagine this being intentional. And I would hate to have to explain the problem to a phone rep.
     
  4. huai

    huai Notebook Consultant

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  5. Jakobsson

    Jakobsson Notebook Enthusiast

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    So how is the performance after the fix? Is the i3 good enough for basic multitasking (office, surf, videos etc.)?
     
  6. huai

    huai Notebook Consultant

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    Wanted to report that I got my i3 today, and it had the same issue. I was able to fix it by disabling speed step. Hopefully there will be a fix soon.
     
  7. evoker

    evoker Notebook Enthusiast

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    Any chance you changed the settings in Dell Command Power Manager? I have the i7 version and can see the frequency being stuck to 600MHz when I set temperature management to quiet/silent or whatever it is called in english.​
     
  8. huai

    huai Notebook Consultant

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    Did not look there - will try that tonight. I don't love my current solution as it hits the battery life.
     
  9. cipsaz

    cipsaz Notebook Guru

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    I just ordered the i3 model. Will definitely check for this issue when arrives.
     
  10. GadgetsNut

    GadgetsNut Notebook Evangelist

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    I noticed the extremely sluggishness straight out of the box. As soon as the desktop came up after the initial setup, I realized the processor is stuck at 0.57GHz. Looking at the factory-run performance assessment, the CPU has a score of 4.0, so this was stuck at 0.57GHz while still at the factory. Did a bit of fiddling and found the setting to fix this. I reported the problem to Dell but did not share with them the setting to work around it.

    So into advanced power settings, under Intel dynamic platform, change the TDP to 2.1. You have to do this for every single power profile under on battery and AC.

    The i5-equipped one defaults to 0.6GHz and yet is able to clock up. This leads me to believe something else needs to be fixed on the i3, perhaps a firmware update.

    You do not want to disable Speedstep in the BIOS. Doing so your CPU will be stuck at 2.1GHz, great affecting your battery life.

    I didn't want to share this with Dell as I want them to find the fix, and not tell me oh there's your fix. How this got past their QA is beyond my imagination. Perhaps they want people to think the i3 is slow as #$!# and sell more i5 that way.

    Run the assessment again after you make the TDP change, and your CPU will score around 7.1 where it should be. If you ever reimage your OS to factory defaults, you'll have to redo all this.

    There you have it, I let the cat out of the bag. Hope Dell gets to the root cause and not use this as their easy fix. Can't believe I had to convince Dell to do their work - they're gonna capture my system.
     
    darinlmiller and Andre Hendarman like this.
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