Ok, the 'memory' in your computer is RAM (Random Access Memory). Now, the processor is the brains of your computer. The faster the processor is, the more tasks it can do. So, if you want to know exactly what type of RAM goes into your computer, go
here, and click on download, then 1.29. Once you've downloaded it, click on the 'cpuz' icon, and click on the 'memory' tab. Right under the tab it should say 'Type'. That's what kind of memory you have. Once you have that, click over to the 'SPD' tab, and check what your 'maximum bandwidth' is. Then go
here , and you can do and advanced search for the specific type of RAM you want.
