IBM unveils world's first subnanometer chip technology

IBM announced a new subnanometer chip architecture built on a 0.7‑nanometer node, described as the first of its kind worldwide. The design, called a nanostack, stacks transistors in three dimensions and can fit close to 100 billion transistors into a package roughly the size of a human fingernail.

IBM says the chip could deliver up to 70 % lower energy use, about 50 % higher performance, and a 40 % improvement in SRAM speed compared with its previous 2‑nanometer generation. The company positions the technology as a key enabler for high‑performance computing and artificial‑intelligence workloads, projecting it could support at least a decade of further scaling. The technology remains in the laboratory phase, with commercial production expected in the medium term.