All those components are going to work hand in hand when it comes to speed. The faster you can get that combination of CPU, memory(faster and more) and harddrive the faster the computer is going to be. Which one to choose all depends on the usage of the machine itself. Gaming for example is obviously going to require more performance but regular usage other than something like that and it will be ok to go with something a little slower and therefore cheaper.
Killing under the cloak of war is no different than murder
Kein Alkohol ist auch keine Lösung!