A lot of that iMac&#x27;s cost is its retina display, and you didn&#x27;t bother buying a retina display for the PC.  Running a speed test is silly, there are already major differences in the build.<p>To make this remotely more scientific, you&#x27;d either need to buy a 4k monitor for the PC, or use a Mac Pro and just take the monitor out of the equation.