Default Is it worth to change from Atom exec to Diamond?

In case of CPU speed or file system performance and operation time? or in other case that i should know

i saw some review (from thailand)

<ps. thai people has some hot issue about use of iphone and diamond too, some say it uncomparable, some say it definitely diamond are good working gadget>

but they didn't do benchmark with Atom exec, so i would like to know how it worth to sell mine and buy a new one diamond.