Apple just announced the new A7, 64 bit chip set for the new iPhone 5S. It is noticeably faster than its predecessor, the A6 found in the iPhone 5. The CPU performance is 40 times faster than the original iPhone! With the A7 everything you use your iPhone 5S for will be noticeably faster–up to twice as fast!
With the A7 graphics performance the graphics chip is 56 times faster than the original iPhone. This will give a big boost to graphic-intensive apps and games, and a much faster frame rates as well. Better efficiency means better battery life for all the things you use your iPhone to do (eg. browsing the web, video playback, cell connection, etc)
The A7 is a modern instruction set, with 2x general purpose registers, 2x floating point registers, over 1 billion transistors and 100 square mm die size. It contains twice as many transistors but is still roughly the same size as the A6.
photo credit [Engadget live-blog]