The next iPhone 15 Pro will a priori be equipped with the new A17 Bionic chip which will be the first to take advantage of the 3 nm engraving process, allowing more transistors to be accumulated on the same surface. By the way, the autonomy of the smartphone could be improved thanks to an optimized energy consumption.
The word to Mark Liu, president of TSMC
More specifically, this new process offers better performance than the previous 5 nm, while consuming 35% less energy. This was recently declared by Mark Liu, president of TSMC, the company that supplies processors to Apple. He further stated that mass production in 3nm has recently started. Source: macrumors