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A4
A4 is a SoC designed by Apple in-house chip design department. It is used in iPad.
Specifications
CPU: ARM Cortex-A9 MPCore
GPU: PowerVR SGX 545
Video and audio playback: PowerVR VXD
Links
http://www.apple.com/ipad/specs/
[http://www.brightsideofnews.com/news/2010/1/27/apple-a4-soc-unveiled---its-an-arm-cpu-and-the-gpu!.aspx http://www.brightsideofnews.com/news/2010/1/27/apple-a4-soc-unveiled---its-an-arm-cpu-and-the-gpu!.aspx http://infocenter.arm.com/help/topic/com.arm.doc.ddi0407e/DDI0407E_cortex_a9_mpcore_r2p0_trm.pdf]