Unfortunately, it's very difficult to know for sure without actually testing the laptop with Rift. That is the point of the Oculus Ready program, as we can test and confirm compatibility. The Compatibility Tool will give you a rough idea, and should work decently on desktops, but for laptops is it very hard to tell.
AMD Ryzen 7 1800X | MSI X370 Titanium | G.Skill 16GB DDR4 3200 | EVGA SuperNOVA 1000 | Corsair Hydro H110i
Gigabyte RX Vega 64 x2 | Samsung 960 Evo M.2 500GB | Seagate FireCuda SSHD 2TB | Phanteks ENTHOO EVOLV