Is one ram card better than two?

     My wifes computer has two 128 meg ram cards , my computer has one 256 meg card . Is there any advantage in haveing two ram cards as opposed to one totaling the same amount of ram ?

>>8
do you have memory in it already? google for a program called cpu-z, in addition to telling you what cpu you have, it also tells stuff about the ram. if that doesn't work, crucial site also has ram IDing stuff.

this will only tell you what you are using right now.