ram

I have been checking out some new web hosting services both here and in some searches in Google and I have noticed that there is some differences between the amount of RAM that some hosting services offer. I read somewhere (can't remember where) that RAM is very important for the performance...

Does anyone know how much RAM is good for a computer to run well? I am trying to decide between a MAC and a PC that I have that will be my main computer. Both seem to run about the same but they seem a little slow to me. They both have 4gb of RAM I think and I don't know if adding more will...