&gt; Keep in mind that this Xeon (E5620) was released in 2010, whereas the Cortex A7-Quad seems to be from 2015?<p>2015? Cortex A7 was released in 2011 to be a <i>lower performance</i> energy efficient in-order core. It&#x27;s significantly slower per clock than Cortex A9 released in 2007!<p>If you want fairness, just compare it to any Xeon available in 2007 running with just a few watts.