Samsung has started fabricating system-on-chip products incorporating the world’s smallest process technology.

These are the first mass-produced using 10-nanometer tech, down from the 14nm of their predecessors. So more chips can be made from a single silicon wafer, with production efficiency increasing around 30%. The devices also consume around 40% less power.

Production kicked off near Seoul this month, according to Samsung. Taiwan Semiconductor Manufacturing Co., the world’s largest semiconductor foundry, is seen mass-producing its own 10nm offerings between late 2016 and early 2017.

Samsung makes semiconductors for itself and offers contract manufacturing to others. It apparently lost out on a contract for chips used in Apple’s iPhone 7, which debuted this September. The South Korean company likely aims to boost its appeal as a contractor by highlighting its miniaturization prowess.

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