The Intel Core i9-X family has 16 processors in CPUVault (16 desktop), launched between 2017 and 2019. It spans 2 series or generations: Cascade X and Skylake-X. Core counts run from 10 to 18, with boost clocks up to 5.1 GHz and TDP from 140W to 255W. The highest core count is the Core i9-10980XE with 18 cores.