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    This could be good processor upgrade news for 1.5ghz 5920G owners!!

    Discussion in 'Acer' started by jnyvio, Jul 15, 2007.

  1. JimmyJ

    JimmyJ Notebook Consultant

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    Does upgrading from 1.5GHz to 2.2 GHz uses more battery power
     
  2. bigspin

    bigspin My Kind Of Place

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    All CPUs have 35W TDP,So I think no :rolleyes:
     
  3. jnyvio

    jnyvio Notebook Evangelist

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    FYI... For anyone interested in 2.4ghz results.. I just ordered the 2.4ghz.. Should be here within the week, and i will be posting 3DMark06 numbers, etc. after the installation. :)
     
  4. bigspin

    bigspin My Kind Of Place

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    post some installation pics too :D
     
  5. ReaperX

    ReaperX Notebook Consultant

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    Ofcourse..


    TDP is Thermal Design Point/Power (represents the maximum amount of power the cooling system in a computer is required to dissipate) not power consumption.
     
  6. Patrick Y.

    Patrick Y. Go Newbs! NBR Reviewer

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    I think I wwill ait for the 45nm processor to upgrade to. :) can't wait.
     
  7. jnyvio

    jnyvio Notebook Evangelist

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    >Does upgrading from 1.5GHz to 2.2 GHz uses more battery power

    yea... BUT, you can open Acer power management and clock it down (or up to your processors specified max) on Battery or A/C power to fit your needs..

    As a matter of fact, when i first got my 5920G, Acer had my clock speeds set to 3/4 on battery.. So in my case i was probably running at 1.0ghz.

    Check it out under device manager, Acer power management. You can't adjust Battery and A/C settings at the same time, only the one it's currently on.
     
  8. bigspin

    bigspin My Kind Of Place

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    Me too..Intel said they will introduce new(Refreshment for SANTAROSA platform) processors 1Q08 so buying a SANTAROSA processor is not worth.
     
  9. downloads

    downloads No, Dee Dee, no! Super Moderator

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    And where does this power dissipated by computer's cooling come from? :p
    Maybe from CPU by chance?
    Power (W)= Voltage (V) x Current (A)

    All laptop Core 2 Duo's (apart from low voltage Core 2 Duo LV series) have the same voltages for speed steps- from 1.0375V to 1.3V.
    I don't suppose you doubt the current is the same for all of them and so is thermal efficiency.
    So how do you imagine C2D T5250 running on battery @1.0375V use more power than T7700 running at a surprising 1.0375V???
    The only conclusion that can be drawn from what you wrote is than you think that i.e. T7700 is more energy efficient than, say T7300- how else could you explain that both have the same TDP of 35W, yet T7700 uses more energy than T7300.
    Let's say both "waste" 35W.
    You claim that T7700 really uses say 45W (both values are hypothetical) and T7300 uses 37W.
    So T7700 power efficiency would be 45/80= 56.25% and T7300 would be 37/72= 51,39%
    How do you achieve this with the same architecture?
    How do you explain that the same voltages multiplied by constant current would give different power consumption? :rolleyes:
    Sorry to disappoint you but T7700 would have basically the same battery life as T5250 or 7300.
     
  10. bigspin

    bigspin My Kind Of Place

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    Thanks for good & simple power consumption review :D

    I also point out the same thing in different way(Actually very disappointing explanation..my bad)
     
  11. jnyvio

    jnyvio Notebook Evangelist

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