Apple iPhone 5s's A7 SoC built by Samsung, M7 processor comes from NXP
 

Rumors swirled ahead of the iPhone 5s' launch that the silicon inside it would come from a source other than Samsung. Despite signing a deal with TSMC to manufacture future SoC's, Chipworks has confirmed that the A7 powering the new flagship iPhone comes from a familiar place: Samsung's fabrication facilities. Yet, while Apple couldn't cut the tie that binds it to its greatest rival for the main brain of the phone, it did manage to source the secondary M7 chip from NXP. Again, Chipworks discovered the chip's origin, and while we'd love to send you straight there for the nitty gritty now, it appears the site is currently down -- so, iFixit's secondary reporting of Chipworks' work will have to do... for now.

http://www.engadget.com/2013/09/20/a...&ncid=rss_semi