Hello, I just wanted to know which of these two if better for my needs. I mostly will use it for programming games with Unity 3D, editing videos with AE and premiere pro and playing games (a lot). So, I do not know which of these two will help me more, and I can only afford the 13 inch model, because here in my country, El Salvador, they are both worth $1600. Your help is really appreciated! PD: portability is really important for me.