Possibly similar to how Intel and AMD bin their chips, manufacturing has been refined to the point most chips are coming off the line with all the cores working, so it's economical to have them all active?Confirmed, A12X actually has 8 cores, with one deactivated.
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The Apple A12Z Bionic SoC is just a renamed A12X with an enabled GPU core
We get to learn that the Apple A12X Bionic has eight physical GPU cores, but one of those cores is disabled. The disabled core is enabled in the new A12Z Bionic that powers the 2020 iPad Pro. While there could be several reasons for this decision, the most convincing explanation is that it would...www.notebookcheck.net
"Yuzo Fukuzaki, one of TechInsights’ Senior Technology Fellows, has confirmed that yes A12X physically has 8 GPU cores.
As for the A12Z, we are planning to conduct floorplan analysis to confirm any differences from the A12X."
A9/A9X (iPhone 6s and first iPad Pro at the same event).Despite the rumours, I am not sure we will see an A14X this year, has Apple ever dropped an 'X' model at the same time as the standard chip?
I wouldn't be surprised to see "just" a 4G => 5G upgrade and then an A14X in early 2021. Another RAM upgrade to 8gb would be nice at the same time, if the pro is getting "desktop-class" software then it might need the memory.