I think better to choose gtx 1070 ti with Micron or Samsung memory because i heard that hynix memory its not godo in mining..
And mostly MSI GTX 1070 ti that i always seen mostly in blogs and youtube but for my small rig i use Palit GTX 1070 as of now i didn't experience any issue so for now i think if you want some suggestion i recommend MSI gtx1070ti.. than the GTX 1070ti armor that only made for gaming purposes..
I see Your point. Thanks.
How can i know if RAM is Samsung or something else?
You have no idea who the memory manufacturer is until you get the card and check for yourself.