Dell's latest ultrathin gaming machine is unapologetically power-hungry and we love it. At well over 300 W when fully stressed, the Alienware x17 R2 isn't afraid to draw as much power as it can to squeeze out more performance than on most other laptops.
https://www.notebookcheck.net/The-Alienware-x17-R2-is-an-absolute-power-hungry-monster-and-we-wouldn-t-have-it-any-other-way.619104.0.html