最新的iphone 3gs，600 MHz CPU and 256 MB of RAM
而iphone 3g， 412 MHz CPU and 128 MB of RAM
其他公司的smartphone 配備:
BlackBerry Bold: 624 MHz CPU and 128 MB of RAM
Palm Pre: 600 MHz CPU and 256 MB of RAM
Nokia N97: 434 MHz CPU and 128 MB of RAM.

apple 不想公佈實際的specification 原因
因為apple 的marketing strategy 是humanized technology experience，不想別人在意iphone 的specification ，從而比較硬件上的分別，因為想sell better user experience, user friendly，令user把iphone 和其他的smartphone 分開看待。

Apple doesn’t want people to think about their products as the sum of the parts but as a more humanized technology experience. And, as such, it takes a different approach to both building products and marketing them.

Source: http://www.macworld.com/article/141051/2009/06/iphone_black_box.html
Source: http://blogs.techrepublic.com.com/hiner/?p=1809&tag=nl.e019