Alder Lake is Intel's codename for the 12th generation of Intel Core processors based on a hybrid architecture utilizing Golden Cove performance cores and Gracemont efficient cores. It is fabricated using Intel's Intel 7 process, previously referred to as Intel 10 nm Enhanced SuperFin (10ESF). The 10ESF has a 10%-15% boost in performance over the 10SF used in the mobile Tiger Lake processors. Intel officially announced 12th Gen Intel Core CPUs on October 27, 2021. Intel officially announced 12th Gen Intel Core mobile CPUs and non-K series desktop CPUs on January 4, 2022. Intel officially announced the launch of Alder Lake-P and -U series on February 23, 2022, and Alder Lake-HX series on May 10, 2022.