So which memories are the good and which one are bad ?
I know Samsung is good, but other good ones ?
Samsung memory is best, then Micron, then Hynix.
From my experience with 1060's mining ETH
Samsung: 25 MH/s
Micron: 22 MH/s
Hynix: 19 MH/s
Unfortunately there is no way to check memory vendor under linux (yet). You have to check under Windows with GPU-Z