you will notice a real world difference if you have loads of apps open at once... if not, its doubtful at the moment
On the nose, if you are running lots of things at the same time then its a gem. If not then you wont notice any differences really - people think that it will allow them to boot faster and load programs quicker but the difference is minimal at best. The real and only difference is when it comes to multitasking and running a lot of different processes.