Yes we know that iMac Pro may be Purley, but now we know a bit more about them. https://videocardz.com/70874/intels-epyc-response-xeon-scalable-processor-skylake-sp http://wccftech.com/intel-launches-skylake-sp-purley-xeon/ --- Post Merged, Jul 10, 2017 --- Interesting. Here is a 16-core, 32-thread Xeon running at 2.6 GHz with a max TDP of 150 Watts. This is doable in a revised iMac, so the spec'd iMac Pro 18-core might not be too much higher in terms of TDP: And then there's this one, a 22-core, 44-thread 2.2 GHz CPU with TDP of 165 Watts. For reference, the i7-7700K gets around 1000 in Cinebench.