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<blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">I am looking to update some hardware and am trying to evaluate what performance difference in QGis might be gained from the options currently on offer from
 Apple.  I have two specific questions:<br>
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<blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br>
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<blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">- Does QGis have GPU acceleration features that leave the graphics card to perform certain calculations, instead of the CPU?<br>
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<blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br>
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<blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">- Does QGis take advantage of multiple cores and / or multithreaded rendering?<br>
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<blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br>
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<blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">I am trying to understand if it would be worth my while investing in a 15" MacBookPro (with quad core CPU and discreet graphics card) over a 13" MacBook Pro
 (with dual core CPU and integrated graphics).</span></font></blockquote>
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<blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Very grateful for any advice. </span></font></blockquote>
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