My 5 year old Toshiba laptop is now dead. It had 2GB of RAM in it which is DDR3 and I was hoping I could use it in a new computer I may soon buy. The new one would be a laptop too, and I see that at the price level I would buy at ($300), it would come with 4GB of RAM which is also DDR3. However, I've been told that there is something other than whether or not the new computer uses DDR3 or not to consider that I never knew about before. Apparently, RAM also has a MHZ specification. The RAM stick I have says it's 1066MHZ. The RAM spec on a new laptop would be 1600 MHZ. I've been told that I can use the RAM I have in the new laptop, but it would slow down the RAM that would already be there, although there would still be an overall increase in the computer's performance.
Now, would it somehow hurt the newer laptop's RAM by slowing it down like that to the old RAM's level? What I'm really trying to find out is whether or not it's a good idea to take the RAM stick out of my old laptop and put it in a new one, or if it would be better to not do that.