Tesla has been reportedly testing samples of a machine-learning chip that it developed in collaboration with AMD.

According to an unconfirmed report from CNBC, the chip was developed by Tesla's Autopilot group under Jim Keller, a veteran microprocessor designer who led work on AMD's Zen x86 processor. The chip is expected to replace an Nvidia GPU that Tesla currently uses, which itself replaced a Mobileye chip, said the CNBC report.

If the Tesla chip actually exists, although nor Tesla neither AMD have confirmed it yet, it would mark a disruptive entry for AMD into the market for silicon for self-driving cars.