Speculation that Apple would add a more powerful A5X chip to its tweaked Apple TV proved false, as a look inside the new hardware has discovered it's simply a smaller version of the previous A5 chip.

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Samsung remains a major component supplier to Apple, and the South Korean company hopes to retain that business relationship through a "strict internal firewall" dividing its handset business and components operations.

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Samsung announced on Tuesday that it plans to spend about $4 billion to renovate its existing chip plant in Austin, Tex., where the company builds Apple's custom processors for the iPhone and iPad.

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AMD announced on Wednesday that it has hired Jim Keller, who was previously a director in Apple's mobile platform architecture group where he worked on Apple's custom chips for devices like the iPhone and iPad.

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The 1080p-streaming Apple TV and $399 iPad 2 use a new variant of Apple's A5 processor that may be a testbed for Samsung's 32nm High-K + Metal Gate process, which could find its way into future A-series chips powering devices like a next-generation iPhone.

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As numerous reports claim Apple's new iPad is warmer than the previous generation, a new analysis has found the A5X chip in the new device runs as much as 16 degrees Fahrenheit warmer than the A5 chip in the iPad 2.

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An analysis of the internals of Apple's third-generation iPad reveal some small changes to the design of the device, such as a switch to discrete DRAM devices, the addition of a heat spreader on top of the A5X chip and a possible move to a flip-chip solution.

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A complete disassembly of the new iPad has offered a glimpse inside the hardware, including a Samsung-built Retina display and A5X processor.

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Though the new A5X chip in Apple's third-generation iPad features the same dual-core CPU found in its predecessor, the system-on-a-chip is still believed to double the onboard RAM to 1 gigabyte.

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