Guide to buy a laptop

[Mamasf]

Hi.
I want to buy a laptop that have two models:
1)core i7 7700hq - 5400 rpm
2)core i7 6700hq - 7200 rpm
And another units are the same.
But I can't choose.
Please help me.
Thanks

 

[White Quacker]

2)

 

[Mamasf]

MERGED QUESTION
Question from Mamasf : "Help to buy a laptop"

Hi.
I want to buy a laptop that have two models:
1)core i7 7700hq - 5400 rpm
2)core i7 6700hq - 7200 rpm
And another units are the same.
But I can't choose.
Please help me to choose and say why.
Thanks