Many websites have posted videos and speed test results showing how fast the new iPhone 3GS is. Even developers are impressed by the speed and frame rates iPhone 3GS is able to achieve. CNET was one of the first website that posted speed test video of iPhone 3GS vs. iPhone 3G and Palm Pre. However, CNET’s tests were done unscientifically and their results depended more on AT&T’s 3G network in the given area than the performance of the new iPhone.

AnandTech has also done some benchmarking on the iPhone 3GS and compared it with other smartphones like Palm Pre, T-mobile G1 and iPhone 3G. In almost all the tests iPhone 3GS came on top. For web surfing iPhone 3GS was 21 percent faster than Palm Pre, 122 percent faster than iPhone 3G and about 150 percent faster than T-Mobile G1. In various application launch tests also iPhone 3GS was faster than all three devices. In fact, in application launch test iPhone 3G was the second fastest device followed by Palm Pre and T-Mobile G1. Showing that software-wise even the old iPhone 3G is faster than Palm Pre.

On the developer side John Casasanta of Tap Tap Tap has posted a video (added below) showing that iPhone 3GS is close to four times faster than the 3G. In the video he shows the frame rates (iPhone 3GS 30fps vs. iPhone 3G 7fps on average) achieved by both the devices for the new Plasma game, which will be released soon for iPhone.  Most of the developers are reporting this kind of performance improvement on the new iPhone 3GS.

There is no 3D graphics comparison available between iPhone 3GS and Palm Pre, as Pre has very limited application library available yet. But it is very likely that Pre will fall behind in 3G graphics performance also, as the iPhone 3.0 OS is more optimized and it supports OpenGL ES 2.0 standard.

There are many other websites that have posted various iPhone 3GS benchmarks. However, we can clearly see that iPhone 3GS is significantly faster than not only iPhone 3G and T-Mobile G1, but also its newest competitor Palm Pre.