A desktop is not the answer if you need to travel. Please tell me how to put my desktop and the monitor inside my backpack when riding my bike

Not sure about the differences between the mobile GPUs, but FYI: ED runs fine on my ASUS Zenbook UX303LN-R4142H.
Specs so far IIRC: Intel Core i7-4510U (2,0 GHz), Nvidia GeForce 840M. ED running on full HD low quality doing approx 30 fps. Stutters a bit inside stations, a bit more when in belts or similar. Fits well for trading, exploring, mining and little BH when not in RES.
I could reduce the resolution to get higher fps or quality, maybe I'll try and experiment next holidays. I'm doing lots of coordinate calculation ATM, so I need to switch between ED and webbrowser frequently. When running ED at a lower resolution, display takes some time to init, so I prefer desktop and ED at the same resolution.
Right now I'm statisfied as it is, so no need to change.