Mark Gurman and Ian King, Bloomberg:

Apple Inc. is designing a new chip for future Mac laptops that would take on more of the functionality currently handled by Intel Corp. processors, according to people familiar with the matter.

The chip, which went into development last year, is similar to one already used in the latest MacBook Pro to power the keyboard’s Touch Bar feature, the people said. The updated part, internally codenamed T310, would handle some of the computer’s low-power mode functionality, they said. The people asked not to be identified talking about private product development. It’s built using ARM Holdings Plc. technology and will work alongside an Intel processor.

If this interests you, take a look at Rene Ritchie’s take on the Bloomberg report. Here’s a taste:

Power efficiency is Apple’s jam. Unless and until they license x86 or swap MacBook to ARM, there’s only so much even the tight and belabored integration they do with Intel will deliver them.

Offloading low-power, low-level tasks to their own silicon, though, is absolutely something Apple could and would do regardless of the main processor architecture. Same as they could and did offload display to their own, custom timing controller when they wanted to bring 5K to the iMac and the industry just hadn’t gotten there yet.

To me, it makes sense for Apple to control as much of the silicon as it can. This is just another step down the road to an ARM Mac.