I am selling because I have upgraded to the M2 version. Frankly after purchasing the M2 version, I found that I could hardly find any difference between the two machines. This is one of the best computers I have ever owned, and it flies through all the tasks that I have thrown at it, including in particular real time playback of 4K video with most color grading effects when editing in DaVinci Resolve.&nbsp;<br><br>I used to own a separate iMac Pro and maintain two machines, but found that with this computer hooked up to my 32" Apple Pro Display XDR, I no longer needed anything more powerful.&nbsp;