Focused on the essentials. Gigabyte's newest version of ttheir P55W hasn't really changed that much. While the predecessor used a GeForce GTX 970M, the new model is equipped with a GTX 1060 - and that's a very noticeable difference.
http://www.notebookcheck.net/Gigabyte-P55W-v6-Notebook-Review.195782.0.html