If it’s not too late to change back to a Windows 7 machine, I would recommend the fastest laptop which runs that OS … the Apple Macbook Pro!
Seriously, I went BYOD at Space Codesign this year on an older model (not even the 2012 non-Retina, which came in first in a CNET benchmark and still being sold) in a dual boot setup so that I could travel without lugging two computers on longer trips – one my own (the other was a Dell E6410 – built like a tank and weighs nearly as much!).
Really, it may not be too late …