Making your RAM faster isn't going to change the quality of whatever you make, it's only going to make things faster on a barely noticeable level.
And klm.. listen to analoq. You don't really seem to know what you're talking about. A processor needs fast ram to be able to access memory FASTER, not more of it at a time. Memory speed is a bottleneck for CPU performance, that's why we have things like different levels of cache on the CPU.