Isn't the point to be able to produce more performance at lower clock speeds, using OOB execution, paralellism, to use less energy and produce less heat? Since

Isn't the point to be able to produce more performance at lower clock speeds, using OOB execution, paralellism, to use less energy and produce less heat? Since there is an upper bound of clock speeds that can be done at room temperature, and high clock speed produce tons of heat. But this article is like OMG 5GHz!!!!