iPhone 18 Pro's A20 Chip Could Be Apple's First on 2nm

The iPhone 18 Pro and Pro Max are tipped to carry Apple’s A20 Pro chip, built on TSMC’s first-generation 2nm process with a new packaging design — a genuine architecture jump rather than an incremental refresh, promising real gains in performance-per-watt. Camera-wise, the 48MP Fusion main sensor is rumored to finally get a variable aperture, letting users control exactly how much light reaches the sensor. Expect the familiar 17 Pro silhouette on the outside masking a meaningfully different chip underneath.