We open up last year's 13" MacBook Pro with Touch Bar for a quick comparison—and if we were to judge a MacBook by its cover, we'd say these were the same machine.

Apple says this butterfly keyboard is a bit quieter, but otherwise unchanged. After banging away at the keys in a side-by-side sound-off, we definitely perceive a lower, less clacky tone, but any difference in decibels is difficult to detect.

The biggest change so far: a new model number—A1989, and EMC 3214.

X-rays also show the return of the modular headphone jack, and provide a peep at the Thunderbolt hardware—which now runs at full speed on all four ports, thanks in part to the 8th-gen Core processor's four additional PCIe lanes.