The $1900 USD Blade 15 GTX 1060 configuration is both slower and cheaper than the Blade 15 GTX 1070 and yet it brings several benefits not available on the more powerful SKU. Our tests reveal that the 60 to 70 W GTX 1060 Max-Q option is less demanding than the 80 to 90 W GTX 1070 Max-Q for noticeably cooler core temperatures and longer battery life.
https://www.notebookcheck.net/The-Razer-Blade-15-GTX-1060-runs-cooler-quieter-and-longer-than-its-GTX-1070-version.315674.0.html