If the information is accurate, the clockspeeds will be the sole difference between the laptop and desktop version of the GeForce GTX 1060. Whereas the deskto ppart has a 1506MHz base and 1709MHz Boost, the laptop versus is expected to have a 1405MHz base and 1671MHz Boost.
“The only difference between the GeForce GTX 1060, for laptops and desktop version, will be reduced core speed. 1405 MHz instead of 1506 MHz in the basic mode, and 1671 MHz instead of 1709 MHz GPU Boost 3.0.”