A Fox News reporter named Clayton Morris claims that inside sources told him that the Apple iPhone 5S will be powered by an Apple designed A7 SoC that is 31% faster than the current A6 chip used on the Apple iPhone 5; the actual benchmarking test used was unknown and also not revealed was whether the 31% increase relates to the CPU or GPU since both are included on the SoC...
Source: http://www.phonearena.com/news/Fox-News-reporter-A7-processor-for-the-Apple-iPhone-5S-is-31-faster-than-the-A6-chip_id46747
Source: http://www.phonearena.com/news/Fox-News-reporter-A7-processor-for-the-Apple-iPhone-5S-is-31-faster-than-the-A6-chip_id46747