According to Electrek’s source, there is a new onboard computer that comes with a secondary GPU to add more computing power. Tesla has since confirmed that they have upgraded the autopilot hardware for its newer models, but it seems that it isn’t as big a deal as you might think it is.
A Tesla spokesperson confirmed the upgrade and in a statement provided to Electrek, “The internal name HW 2.5 is an overstatement, and instead it should be called something more like HW 2.1. This hardware set has some added computing and wiring redundancy, which very slightly improves reliability, but it does not have an additional Pascal GPU.”
Tesla’s autopilot feature has been around for awhile now, although the company has stressed many times in the past that it is not a self-driving feature, but it seems more like a safety feature as it is said to help prevent accidents which we have seen it live up to the promise in several videos.