While little else solid is known about the iMac Pro's shipping configuration with only a matter of days before it ships, it appears that a regulatory filing associated with the device calls it model A1862.
Developers Guilherme Rambo and Stephen Troughton-Smith have found "Hey Siri" functionality in the macOS code base with support for multiple user accounts all driven by what appears to be the A10 Fusion processor, according to the pair. AppleInsider talks about why Apple might do that, and what it would mean for the iMac Pro.
The iPhone 8 and iPhone 8 Plus come loaded with Apple's new A11 Bionic processor. AppleInsider takes a look at everything it brings to the table, and how it compares to the A10 Fusion from the iPhone 7 and iPhone 7 Plus.