The four generations of the iPhone were tested at the same time to compare their performance when certain applications are launched. The evolution is quite significant between the iPhone Edge / 3G and iPhone 4, but the iPhone 3G did not blush in front of the new iPhone. Indeed, the speed test shows little difference between the two latest iPhone.
It was easy to find online all kinds of videos comparing the speed of the iPhone 3G and that the new iPhone. By cons, it was more difficult to lay hands on a video comparing the speed of four generations of iPhone …
Here is video made since going in this direction has recently been published on YouTube. The different tests relate to the speed of openings of different applications such as Plants vs. Zombies, Google Earth, Seadragon, and finally Safari.
What better appreciate the evolution of the execution speed of different iPhone models.
You will notice the speed difference significantly between iPhone 3G and iPhone 3G. Seeing the results obtained, we can clearly understand the strategy of Apple to have limited functionality on the 3G model multitasking.