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Overclocking FSB vs Multiplier Overclocking

Discussion in 'Hardware' started by Parge, 9 May 2011.

  1. Parge

    Parge the worst Super Moderator

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    Which one, if any, generates more heat?

    I'm playing around with my i5-750 and having trouble keeping heat in check - mainly because of my ITX case.
     
  2. Bartaggio

    Bartaggio Member

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    Voltage.

    Just increasing the clock or the multiplier shouldn't really affect the heat by a large amount (assuming you don't have your volts on auto).
     
  3. Parge

    Parge the worst Super Moderator

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    Not including voltage..... I'm currently running it at @ 3.45Ghz @ 1.1250v - think the default is 1.1675v
     
  4. Wicked_Sludge

    Wicked_Sludge My eyes! The goggles do nothing!

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    id say they are close enough as to be indistinguishable. as bartaggio said, neither BCLK nor multiplier will effect heat fractionally as much as voltage does.
     
  5. Lankuzo

    Lankuzo CPC Refugee

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    With my I7 950 I found it needed more Volts when overclocking with the bclk.
    4ghz 1.4vcore x20 multi 200 bclk
    4ghz 1.385 x24 multi 167 bclk
    So with less Vcore using multi meant lower temps. Only about 1/2c though.
     
  6. adam_bagpuss

    adam_bagpuss Have you tried turning it off/on ?

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    im guessing you mean baseclock not FSB :p

    i guess it would be close but id say multi overclocking is slightly cooler although i bet its not alot due to the extra mobo volts needed to keep it stable at higher baseclock
     
  7. Guest-16

    Guest-16 Guest

    Baseclock. Because everything gets overclocked. Higher frequency = more power. That's why laptops only ever use the the lowest frequencies where they can get away with it (think DDR3 speeds). Outside of a laptop though it won't really matter that much - voltage to any component is your biggest heat source.
     

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