Power Mac G5 Quad – Which is Faster, PC2-3200U-288 or PC2-4200U-444 RAM?

I have always wondered whether equipping your Power Mac G5 Quad with PC2-4200U-444 RAM would make for a faster machine than if the same machine were equipped with PC2-3200U-288 RAM. It seems obvious that the faster RAM ought to make for a faster machine, but as we shall see in a moment, it doesn t really [ ]