IBM unveils new record-breaking chip with 100 billion transistors in less than 1 nanometer footprint — new NanoStack design is like "a 100-storey skyscraper" packed with highly efficient processing power

IBM NanoStack, a sub-1 nm chip crams almost 100 billion transistors onto a finger-size surface.

• IBM pushes transistor density below the long-feared one-nanometer barrier
• NanoStack abandons flat chip layouts in favour of vertical transistor stacking
• The prototype delivered 50% more performance during IBM laboratory testing phases

IBM has unveiled what it describes as the world's first sub-1 nm chip technology, carrying nearly 100 billion transistors on a fingernail-sized surface.