This is probably a no-brainer as the iPhone 4 really should have faster browsing speed compared to iPhone 3GS. Nevertheless, it’s nice to actually see the difference in a side-by-side video like the one below by Obama Pacman.
You could even use this as an excuse to go out and upgrade your 3GS to iPhone 4, if you browse a lot. Just tell your wife (if you’re a man – otherwise, tell your husband) that you’ll be able to finish browsing faster and help out in the kitchen sooner than before 🙂
MacRumors’s benchmark tests also concluded that the iPhone 4 processor was 31% faster than iPhone 3GS (but slower than iPad).