Starting with certain models introduced in late 2020, Apple began the transition from Intel processors to Apple silicon in Mac computers.
On Mac computers with Apple silicon, About This Mac shows an item labeled Chip, followed by the name of the chip.
On Mac computers with an Intel processor, About This Mac shows an item labeled Processor, followed by the name of an Intel processor. A Mac with an Intel processor is also known as an Intel-based Mac.
Apple doesn’t capitalize “silicon,” and I can’t get used to it.