The A6 inside the iPhone 5 varies its clock speed for performance

One possible reason the iPhone 5 has such great battery life is the clever way the A6 changes its clock speed. While originally thought to be clocked at 1GHz, the chip has been clocked at 1.1GHz as well as 1.3GHz by Current Editorials.

While 9to5Mac saw the chip's speed drop as low as 550MHz, this seemed to do more with an as-yet-updated Geekbench app testing the chip (which also resulted in the 1GHz assumption). A Geekbench update seems to paint a different picture now. By all accounts it appears the chip can change "speeds," however, resulting in better battery life and dynamically tuning itself to the demand for CPU.

Between this and the human-powered layout found in the dissection of the A6, it's obvious Apple's decades of hardware expertise have all led to creating an amazing CPU for the iPhone 5.

[Source: TUAW]

Apple A6 Processor is a Custom Apple Design, Prioritizing Performance and Power Efficiency

As part of their iPhone 5 announcement, Apple revealed that the new iPhone is powered by a new "A6" processor from Apple. The A6 is said to have twice the CPU power and twice the GPU power of the previous generation Apple A5 processor. Beyond that, however, Apple offered few other details about the nature of the processor. For example, it's not clear how many cores the processor has or what the clock speed is.

[Source: MacRumors - Read more here]

iPhone 5 Benchmarks Appear in Geekbench Showing a Dual Core, 1GHz A6 CPU

The results show an iPhone5,2 device running iOS 6 with a Dual-Core 1.02GHz ARMv7 processor and 1GB of RAM.

The total Geekbench 2 score comes in at 1601. Poole notes that the average score for the iPhone 4S is 629 and the average score for the iPad 3 is 766. A comparison chart of previous iOS devices can be viewed at Geekbench. The numbers seem to validate Apple's claim that the A6 processor is twice as fast as the A5 and any previous iOS device. This one score also places the iPhone 5 ahead of the average scores of all Android phones on Geekbench. The full Geekbench results further breakdown processor, memory and bandwidth performance.

[Source: MacRumors - Read more here]

iPhone 5 officially announced with 4-inch display, A6 CPU and LTE for $199 on September 21st

Apple may be notoriously secretive and tight lipped, but the company appears to be getting worse and worse at actually keeping things under wraps. The iPhone 5 appears to be the most leaked handset in existence. Thankfully, the suspense is over, the next-gen iPhone is finally here and it does, in fact, go by the numerical title of 5. Just like the parts that have been circulating on the web, this is a glass and aluminum two-tone affair and, at 7.6mm it's a full 18 percent thinner than the 4S. It's even 20 percent lighter at 112 grams, which is even less than the mostly plastic Galaxy S III. It's all those "magical" things and it packs a larger 4-inch in-cell display. The new version of Apple's Retina panel is 1136 x 640, which clocks in at a more than respectable 326ppi. It also sports better color saturation with full sRGB rendering. That new longer screen allows for an extra set of icons to be displayed on the home screen, and first party apps have already been tweaked to take advantage of the additional real estate. The iWork suite, Garage Band and iMovie have all been updated. Older apps will still work too, though they'll be displayed in a letterbox format until an update is issued. The tweaked ratio puts the iPhone 5 display closer to 16:9, but it's not quite there.

[Source: Engadget - View more images there]