IBM surges on unveiling sub-1nm chip technology breakthrough

Investing.com -- International Business Machines (NYSE: IBM) shares jumped about 5% in premarket trading Thursday after the company's announcement of a sub-1 nanometer chip technology breakthrough.

“IBM’s new sub-1 nm chip packs nearly 100 billion transistors onto a chip the size of a fingernail, nearly twice the density of IBM’s 2 nm chip, unveiled in 2021,” the company says in a statement.

The new chip technology features a transistor architecture at the 0.7 nanometer node, which the company said represents the first chip technology to operate below the 1 nanometer threshold.

The new chip utilizes a "nanostack" architecture, a three-dimensional design that vertically stacks and staggers transistors. IBM said the chip packs nearly 100 billion transistors onto a fingernail-sized chip, approximately twice the density of IBM's 2 nm chip unveiled in 2021.

According to published technical results, the chip is projected to deliver up to 50% more performance or 70% greater energy efficiency compared to IBM's 2 nm node chips. IBM also presented research at VLSI 2026 showing the nanostack architecture provides 40% scaling in SRAM.

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