The Asus ROG Zephyrus is the flagship model for Nvidia's Max-Q initiative. It packs a fully-fledged GTX 1080 with 8GB of GDDR5, a Core i7-7700HQ and 16GB of RAM, inside a chassis that's 17.8mm thick and 2.3 kg heavy. This makes the Zephyrus the slimmest GTX 1080 laptop on the market, and by a significant margin, too.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips