IBM Announces First Sub-1 Nanometer Chip Technology, Doubling Transistor Density

IBM has unveiled a new chip architecture that can integrate nearly 100 billion transistors on a chip the size of a fingernail, roughly doubling the transistor density of its previous generation. The company claims this is the world’s first sub-1 nanometer chip technology for AI data centers, offering a meaningful leap in compute performance and energy efficiency. While physical transistors smaller than 1 nanometer remain impractical due to physical limits, IBM’s nanostack architecture delivers equivalent performance improvements.