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    Question about multi thread processors.

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by HorrorofSpamylon, May 26, 2011.

  1. HorrorofSpamylon

    HorrorofSpamylon Notebook Geek

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    I was wondering if, say, a dual core processor with two threads per core (i5, etc.) would take advantage of applications (such as a game) that take advantage of four cores.
     
    HorrorofSpamylon, May 26, 2011
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  2. ramgen

    ramgen -- Morgan Stanley --

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    This is a very rough number but you can, on the average, assume that a multithreaded core is equivalent to a 1,05 - 1,2 core processor. So yes, it will give you a slight advantage if your application runs 4 threads at the same time.


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    ramgen, May 26, 2011
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  3. tijo

    tijo Sacred Blame

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    I would have said 0 to 30% increase in performance depending on what you're doing. In some cases Hyperthreading won't give a benefit at all. It depends on if a thread stalls because it has to wait for data that's stored in the RAM. The core will start executing the second thread only if the first one stalls since each core only has one execution unit.
     
    tijo, May 26, 2011
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