Hi. I just received a 27" iMac full equipped to change a 2009 iMac.. I bought the best processor, graphic card, fusion drive and 32 gb of memory (crucial). The main motivator to change and buy the best possible iMac is that I have a huge library of home videos that I want to edit and I have to do a video for an important family event. Now I was doing some tests in iMovie with both machines and I am disappointed with the real life results. For example to do a clip stabilization the new Mac was about 25-30% faster. To finish and export a movie was about the same (40 min vs 30 min). I expected so much better results so I am wondering if the problem is with iMovie that does not use all the power of the graphic card, memory and processor. Did I spend that much money to get a 30% faster machine and a large fusion drive?