How is SW running on Surface 3 LTE, MacBook 2015 and MacBook Air 2015?

Hello, I have been using SW via bootcamp on my rMBP 15" with 16GB RAM. I seldom doing simulations in SW. I just use it to design things. As I have lots of stuffs including the laptop and Samsung Galaxy Note PRO 12.2 (my tablet and phone) to carry daily, I am considering to get a lighter computer. How is SW running on Surface 3 LTE and this year's MacBook and MacBook Air?

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