Throttling

Discussion in 'Microsoft Surface Pro 3' started by gman713, Dec 6, 2014.

  1. gman713

    gman713 Member

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    I know there were a ton of posts about this issue when the SP3 was first introduced but wanted to ask you guys if MS has made any improvements to the issue over the past several months? I'm thinking about getting the SP3 or go back to the SP2 if the throttling hasn't been improved.
     
  2. GreyFox7

    GreyFox7 Super Moderator Staff Member

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    Its improved and vastly overblown, everything throttles nowadays... everything. It's part of the equation in modern system building that allows them to design closer to the edge, otherwise they would have to build it more conservatively to start with.
     
  3. ptrkhh

    ptrkhh Active Member

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    Well, to be fair, the SP2 doesn't throttle
     
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  4. GreyFox7

    GreyFox7 Super Moderator Staff Member

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  5. ctitanic

    ctitanic Well-Known Member

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    Come on! It does it, just less and at a different temperature.
     
  6. ptrkhh

    ptrkhh Active Member

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    I know, the OG Surface Pro, together with all Ivy Bridge tablets, throttles. But I was specifically talking about the SP2.

    Not in the actual usage, whatever the scenario is. It only throttles when you put multiple synthetic benchmark programs simultaneously. Correct me if Im wrong, of course.

    To answer the OP, yes, the SP3, apart from the i3 model, does throttle, and sadly, the situation couldn't be improved without modifying the hardware. The fan can only do so much. Even with the fan running at full speed (does it even have multiple speed profiles? I can only hear a) nothing or b) fan whirring loudly), the CPU still gains temperature, until eventually reaching its temperature limit. They could make it throttle less, of course, by letting the CPU stay at just below its limit for longer, but don't expect to fully unleash the potential of the processor anytime soon.

    You could consider hardware modification, like the custom fan (http://www.surfaceforums.net/threads/custom-fan-to-reduce-throttling.10996/)

    Important to note, the i5 model doesn't get any slower than the i3 model (which doesnt throttle) in most situations, so if you set your expectation on the i3-4020Y, you wouldn't be disappointed with the i5 SP3.
     
  7. GreyFox7

    GreyFox7 Super Moderator Staff Member

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    Actually the August Firmware did change the Throttling profile of the SP3 so all of the early writing on the topic is invalid.
    Ref Page 3 of Procthrottlemax thread...
    ProcThrottleMax, Powercfg setting

    So they chose 70c in the SP3 vs 80c in the SP2 but from all the testing I did they could have gone higher, probably even to 80+ and maintained stable operation but they went conservative. Lenovo runs the X1 much hotter, right up to the limit and yes, it throttles also, its baked into the design.
     
  8. InspectHerGadget

    InspectHerGadget Active Member

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    I haven't the slightest concern about the throttling but then my usage is for general purpose such as browsing, email, inking and my accounting package, Word, Excel.

    It is the i7 model and it is very fast and mostly a pleasure to use.

    I can understand though if you are using it for gaming throttling may be an issue as it is running flat out for extends periods.
     
  9. ptrkhh

    ptrkhh Active Member

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    Its also important to note that a tablet couldn't resist as much heat as laptops. The reason is because the CPU sits right behind the display, and the display is quite sensitive to such high temperature. That's the reason why tablets cant run as fast as laptops even though they have an identical CPU and thickness.
     
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  10. RémiM

    RémiM Active Member

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    The best thing I've read in a while. I totally agree with what you said.

    I tried to find the references of the display, just to check its range of temperatures, but it looks easier to speak on the phone with B. Obama.
     
  11. Haldi

    Haldi Member

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    Never tought about that!
    Have you given up on finding anything or are you still searching?
     
  12. RémiM

    RémiM Active Member

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    @Haldi I gave up. But I can pass you the baton if you want. I am still very interested to know !
     

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