An analysis by Nikkei Electronics has confirmed that the processor inside Apple's iPhone 5S is made by Samsung, confirming the warring companies' ongoing relationship.
The iPhone 5S's Apple-designed, Samsung-made A7 chipset.
First discovered by Chipworks and iFixit soon after the iPhone 5S's launch, the Nikkei Electronics results show that the iPhone 5S is using a system-on-chip manufactured using Samsung's latest production processes, despite the ongoing legal stoushes between the two mobile giants.
According to Nikkei, the Samsung-made chip is constructed using a 28-nanometre process, one generation ahead of the 32-nanometre process used in the Apple A6, also manufactured by Samsung and used in the iPhone 5. The A7 uses a dual-core CPU and a quad-core GPU.
While Samsung is building the chips for the iPhone 5S, Apple is looking elsewhere for its future processor production. A source told CNET that the Cupertino, California-based company is developing its relationship and working with Taiwan Semiconductor Manufacturing Company (TSMC), the largest chip-maker in the world.