PC Laptop advise Tweet

[RizonParein]

Hello,

I am considering to buy a pc laptop, I am a mac guy and very little technical knowledge about computers.
What mobile workstation should I buy with focus on modelling and rendering, with in the the back of the mind using mostly gpu for rendering (Vray RT and Octane).
For now I would just like to know what the best 2 choices are, pros and cons, not taking budget into consideration.

Here's what I am currently looking at:

GoBOXX 17 MXL (980M)
http://www.boxxtech.com/Files/Files/Pro ... load=false

MSI GT80 Titan (2*980M)
http://www.xoticpc.com/msi-gt80-titan-s ... -8272.html

Asus ROG G751JY-DH72X
http://store.asus.com/us/item/201506AM270000004/A30933

Alienware 18 (2*980M)
http://www.dell.com/us/p/alienware-18/p ... ienware-18

Thanks!