Dual core iPhone 5s beats quad-core 'droids in speed test

Which? magazine has revealed the new Apple iPhone 5s to be the fastest smartphone of all in the latest round of processor benchmarking tests, despite it having less cores that rival handsets. Not only was the 5s almost twice as fast as the iPhone 5 in testing, but also around 50% faster than the Samsung Galaxy S4. In fact, the iPhone 5s is the fastest smartphone Which? has ever tested.