Dell Latitude 13 7380 (i7-7600U, FHD) Laptop Review

[Deller]

The Core-M cpu was absolutely fine. This model now has little to distinguish itself from the 12 or 14" models.

Most users are definitely not using the Core i5 or i7 to their full potential. But when they do even these processors throttle back their performances considerably. So to me the relative gains of excess energy consumption for marginal performance gain makes little sense. If you are doing anything serious then desktops are still better suited.

[Toby M]

It's been proven here that laptops with Core M/Y have worse battery life than those with same generation i3/i5/i7 ULV CPUs.