Apple has two versions of the M4 chip for the iPad Pro. | Screenshot: Apple
The newly announced iPad Pro hides a sneaky upgrade option that Apple didn’t mention during its event today. When you cough up the $600 it costs to jump from the 256GB base model iPad Pro to the 1TB version, Apple doesn’t just double the RAM along with that — it also puts a faster chip inside, going from a nine-core M4 chip to a 10-core version.
This is the first time Apple has offered a processor upgrade on a specific tablet model — in the past, no matter what other options you picked on a given tablet, you knew you were getting the same chip as any other configuration. In the past, Apple only tied RAM upgrades to storage boosts; that’s still true here, with the quantity doubling from 8GB to 16GB. You also get the privilege of buying…