[kikicoco1334]

so i been looking around my house and found some stuff i didn't even know i had it...
but here is what i am here to ask...
i found some single sided and some double sided ram too
what's the difference between them?

the single sided the IC is NT5TU128M8DE-AD 82512W1DF made by NANYA
and double sided V916765K24QCFW-G6 IC is saying V59C1512804QCF25A made by ProMOS

how different are they?

and how is OCZ2RPR800C44GK?
i really don't know how fair should they go?
i had them to like 1066 before and it was @ 5-5-5-18 2.1v
i looked everywhere......