Well recently, I got A7rii and I was surprised because of its RAW file's size. I have Mac Pro 2010 with custom parts but CPU is not powerful enough to handle those files. Btw Im using dual X5677 which has 3.47ghz and 8 cores total. Im using both C1 Pro and LR but it is quite difficult to review, edit, and import those images. Many photographers with A7rii seem to use iMac 27inch but I doubt about using only 4 cores CPU while my Mac Pro 2010 used all 8 cores and extremely get hot. Yeah, I really need 8 cores CPU so much. For me, 4 cores CPU is not enough. Other than that, iMac 27 seem to be a great deal around $3000 I know that iMac Pro is for professional users but I wonder if I need it instead of iMac 27 with 4 cores CPU. But it seems that there is no 6~8 cores Kabylake CPU... Damn.... Just stick with quad core cpu?