15 & 17" MBPs- Hyperthreading versus real cores?

Discussion in 'MacBook Pro' started by Gata, Sep 9, 2010.

  1. Gata macrumors regular

    Mar 23, 2010
    Assuming all cores are maxed out, how would the performance of the virtual cores stack up against physical cores (say, in the instance of a i7-620m)?
  2. Eddyisgreat macrumors 601

    Oct 24, 2007
    All other variables held constant, physical cores will always beat out a system with half the physical cores + hyperthreading, particularly if you are running processes that actually max out the cores.
  3. amarcus macrumors 6502

    Feb 26, 2008
    London, UK
    Hyper-threading at its best gives about a 15-20% performance increase. It's more about better utilising the cores you have rather than adding additional compute power. In short a hyper-threaded i7-620m is more of souped up dual core and wouldn't be able to touch a true quad-core equivalent.

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