M11x R3 i5 running at 2GHz instead of 2.3GHz?

Discussion in 'Alienware M11x' started by emike09, Nov 20, 2012.

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  1. emike09

    emike09 Overclocking Champion

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    Hey guys.
    I've been keeping a close eye on CPU-Z to see if the CPU ever hits 2.3GHz as is claimed. I've never once seen it go above 2GHz. Anybody else notice this, or have any luck catching the system running at 2.3GHz even if for the short duration turbo boost?
     
  2. Mobius 1

    Mobius 1 Notebook Nobel Laureate

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    Install Throttlestop

    Check multipliers to be on turbo
     
  3. emike09

    emike09 Overclocking Champion

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    Thanks for the quick reply. Not sure how I've missed ThrottleStop all these years. Seems to be a great little app. Certainly shows 2.3GHz for single threaded apps. The same single-threaded apps that make my i7-3930K engage the single-thread turbo-boost mode aren't making the m11x hit the top speed for turbo boost and ThrottleStop just verified that. Too mad it doesn't unlock those multipliers ;)
     
  4. unclewebb

    unclewebb ThrottleStop Author

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    The maximum turbo boost multiplier depends on how many cores are in the active state. The ThrottleStop TRL window will show you what multipliers your CPU supports. When running a single threaded benchmark on a dual core CPU, Windows background tasks will be waking up the second core on a regular basis so you will never see the full 1 core turbo boost multiplier for any length of time. The CPU will rapidly and continuously switch between the 1 core multiplier and the 2 core multiplier.

    Your i7-3930K has 6 cores and 12 threads available to process the background tasks. It's a lot easier keeping that CPU running close to the 1 core multiplier. If you set your 3930K in the bios to use the same multiplier no matter how many cores are active, that's why it has no problem maintaining the full multiplier.

    Check out RealTemp GT for your 6 core CPU. It will give you an accurate look at what multiplier your CPU is really using. RealTemp uses the same code as ThrottleStop does when determining the multiplier. It uses high performance timers within the CPU and a method recommended by Intel so it can accurately detect the smallest of changes in the multiplier.

    RealTemp GT 3.70
    Download Real Temp 3.70 | techPowerUp
     
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