Hyperthreading??

Discussion in 'MacBook Pro' started by xi mezmerize ix, Jul 26, 2010.

  1. xi mezmerize ix macrumors 6502a

    xi mezmerize ix

    Joined:
    May 24, 2010
    Location:
    Maryland, USA
    #1
    When hyperthreading is activated on a dual-core CPU (making 4 virtual cores), is it equivalent to a quad core without hyperthreading, or is one faster than the other? Just a random fact I kind of want to know.
     
  2. w00t951 macrumors 68000

    w00t951

    Joined:
    Jan 6, 2009
    Location:
    Pittsburgh, PA
    #2
    While hyperthreading is useful for boosting performance, physical cores are almost always faster and more efficient than virtual.
     
  3. altecXP macrumors 65816

    Joined:
    Aug 3, 2009
    #3
    a good estimate is that a hyper-threading core is 60-75% as good as a real 2nd core. This was form the older Intel's though. I don't know if the Core i's are more efficient.
     

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