Or you could get an i7 4C/8T laptop with a GTX 1060 for about the same as you'd pay for the razer alone. Ultraboooks just aren't value for money right now unless portability comes above everything but you still need some firepower.
As for memory usage, I've used matlab, fusion 360, and 30+ tabs on Chrome at the same time a few times and haven't had slow downs with 8GB. 16GB only really becomes an advantage at this point in time when you're working on absolutely massive media projects or playing very open world games like GTAV or Witcher 3. Heck, 4GB was enough for most uses until I needed VMs for my work.