I just don't think Apple/ARM are going to have anything in the class of a 10-core i9 Intel chip for a while yet. Which is why they are doing this last iMac in the old form factor as a 2 - 3 year stopgap, in my uninformed opinion. I wouldn't buy an Intel laptop now, because that is where the focus will be, but think desktop performance with the new silicon is still a way off?