CUDA or not, I don't think many will buy a mac pro unless it delivers what the last one did in terms of Graphics. And that probably requires at least using sepa

CUDA or not, I don't think many will buy a mac pro unless it delivers what the last one did in terms of Graphics. And that probably requires at least using separate graphics card in the several-hundred-watt class. They obviously aren't going to shove a 400W graphics card into the SoC and they aren't going to shrink the power requirements by an order of magnitude for GPUs. An they also aren't going to enter the business of making discrete pro graphics cards. nvidia and AMD can afford to do that research work because it trickles down to consumer/gamer cards. But Apple surely can't motivate that research expense. So the only thing that makes sense is to either make no Mac pro tower workstation with discrete GPUs at all, or doing what they did last time, using third party cards.