How much faster will my pc get if i use RAID? And where is it noticeable?

[LordAwesome]

How much faster will my pc get if i use RAID with 2 samsung pro 256 GB SSDSs? In which way will it be faster?

It is RAID 0 i'm planning on using

I'm using Windows 10 with the ASUS Z97-AR motherboard.

 

[getochkn]

Not a lot. Maybe your windows will load 1 second faster. Won't have any impact on games running faster or anything. Buy you only say "faster", not what you mean by faster.

 

[USAFRet]

How much faster will my pc get if i use RAID with 2 samsung pro 256 GB SSDSs?

Assuming you are thinking of RAID 0, none.
See this: http://www.tomshardware.com/reviews/ssd-raid-benchmark,3485.html