Ok sometime ago I got an Alienware 17 R3 laptop as a gift it came with 128gb m.2 drive = PM871 which is funny slow. I then purchased 850 evo 512GB m.2 because of financial reasons, and now I am ready to move to a proper fast SSD. From what I understand If I order the same laptop from dell with 1tb ssd it will come with 2x512gb pm951 in raid 0? so should I go that way or should I just get one Samsung 950 512gb? what will be the speed difference between 2 raid 0 Samsung pm951 and Samsung 950 pro? I don't really care about the capacity difference but keep in mind 2 pm951 are still cheaper then one 950 pro? any help will be greatly appreciated