the pentium dual core feels just as fast even tho its only 1.6ghz . . . The pc is only being used to stream tv and watch movies while hooked up to my 32inch tv . . Does a good job . . Getting another tower tmaz . .hope its better . . Dnt no spek yet
In general use for the most part it's going to feel as fast however, when you start dumping some heavy load on it you'll notice.
But for what it's used for it's perfect.