The some what ancient chip that I use. The following is written by the contributors of Wikipiedia. "The Apple A5 is a 32-bit system-on-a-chip designed by Apple Inc. and manufactured by Samsung[3][4] and is the successor to the Apple A4. The A5 commercially debuted with the release of Apple's iPad 2 tablet, and also powers the iPhone 4S, iPod Touch fifth generation, Apple TV third generation, and the iPad mini. This is consistent with how Apple debuted the A4 chip: first in the original iPad, followed by the iPhone 4, and then the iPod Touch (fourth generation).[5] Apple claims that compared to its predecessor, the A4, the A5 CPU "can do twice the work" and the GPU has "up to nine times the graphics performance".[6]Currently, as of July 19, 2015, the Apple TV is the only hardware that uses the A5 chip.The A5 consists of a dual-core ARM Cortex-A9 MPCore CPU[7] with NEON SIMD accelerator and a dual core PowerVR SGX543MP2 GPU.[2] Apple lists the A5 to be clocked at 1 GHz on the iPad 2's technical specifications page,[8] though it can dynamically adjust its frequency to save battery life.[9][7] The unit used in the iPhone 4S is clocked at approximately 800 MHz.[10]Apple has also included an image signal processor unit (ISP) that will do advanced image post-processing such as face detection, white balance and automatic image stabilization[11] and an "earSmart" unit from Audience for noise canceling.[12]When the A5 was first released, it was estimated at that time to cost 75% more than the previous generation, with the difference expected to diminish as production increased.[13] As of August 2012, the A5 is manufactured at Samsung's Austin, Texasfactory.[14] Samsung invested $3.6 billion in the Austin facility to produce chips such as processors, and nearly all of that wing's output is dedicated to Apple components.[15] Samsung has invested a further $4.2 billion at the Austin facility in order to transition to a 28 nm fabrication process by the second half of 2013.[14]The A5 part model numbers are: S5L8940 (45 nm version), S5L8942