Will the processor, motherboard and bus system actually operate at the higher speeds? If not you will not see any speed increase. It can only operate as fast as the bus system. You have to buy memory as fast (or faster) as the bus system or it will not recognize the memory.


So I would buy a processor and mobo that support the fastest RAM available. Even if the speed increase isn't mind boggling, at least your computer won't be out dated as fast. And I'm sure if you put a stop watch on a series of functions you see some slight increases.


Lots of RAM will show you the biggest boost.