i want buy laptop to use with blender

i want buy laptop to use with blender but i have only 850 dollars ,
i have a desktop but i need a laptop
what you think i can buy with 850 dollars to use with cycles
what do you think about this
http://www.darkom.dz/achat/Produit/25685

Maybe something like that:

what do you think about this
http://www.darkom.dz/achat/Produit/25685