Tag Archives: AppleA6

Apple A6 investigation shows highly customized dual-core, triple-GPU layout

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Apple A6 teardown confirms highly customized dualcore, tripleGPU layout

There's been a significant mystery lingering around the A6 processor found in the iPhone 5, even as it became clearer that Apple was veering further than usual from the basic ARM formula. A microscope-level inspection by Chipworks and iFixit is at last identifying the key elements of the 32nm, Samsung-assembled chip and revealing just how far it strays from the beaten path. The examination confirms earlier suspicions of a dual-core design with triple-core graphics -- it's how that design is shaped that makes the difference. Apple chose to lay out the two processor cores by hand rather than let a computer do the work, as most ARM partners do. The procedure is expensive and slow, but also gives the A6 a better-optimized design; it explains why the chip is noticeably faster than much of its competition without needing the brute force approaches of higher clock speeds or extra cores. Some mysteries remain, such as the exact PowerVR graphics that are at work, but it's evident Apple now has the design talent and resources to speed up mobile devices on its own terms rather than wait for off-the-shelf layouts like the Cortex-A15.

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Apple A6 investigation shows highly customized dual-core, triple-GPU layout originally appeared on Engadget on Tue, 25 Sep 2012 11:36:00 EDT. Please see our terms for use of feeds.

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How the iPhone 5 got its ‘insanely great’ A6 processor

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How the iPhone 5 got its 'insanely great' A6 processor It's hard not to be impressed by the A6 engine in the new iPhone 5, since it's now proven to deliver a double-shot of great performance and class-leading battery life. But silicon stories like that don't happen over night or even over the course of a year -- in fact, analyst Linley Gwennap has traced the origins of the A6 all the way back to 2008, when Steve Jobs purchased processor design company P.A. Semi and set one of its teams to work on creating something "insanely great" for mobile devices.

Although Apple is steadfastly secretive about its components, Gwennap's history of the A6 (linked below) is both plausible and a straight-up good read for anyone interested in the more fundamental aspects of their gadgets. Whereas the A5 processor stuck closely to ARM's Cortex-A9 design, Gwennap is convinced -- just like Anandtech is --that the A6 treads a very different path: it's still based on ARM's architecture and it's likely fabricated by Samsung using a cutting-edge 32nm process, but it's an in-house vision of what a mobile chip should be. It's the culmination of four years of hard work and perhaps half a billion dollars of investment.

That's not to say it's the most powerful chip out there, or even the chip most tailored to its host device -- after all, Samsung also designs great chips for some of its own smartphones. Indeed, Gwennap says that the A6 is probably a dual-core processor that is no more complex than Qualcomm's Snapdragon S4 (let alone the S4 Pro) or the forthcoming generation of Cortex-A15 chips, while its clock speed could be as low as 1.2GHz -- versus a 1.6GHz quad-core Exynos in the Note II and even a 2GHz Intel chip in Motorola's new RAZR i. However, Gwennap predicted that even if the A6 falls short of its rivals "in raw CPU performance," it'd make up for it in terms of low power consumption -- which is precisely what we've confirmed in our review.

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How the iPhone 5 got its 'insanely great' A6 processor originally appeared on Engadget on Wed, 19 Sep 2012 06:03:00 EDT. Please see our terms for use of feeds.

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Apple: A6 chip in iPhone 5 has 2x CPU power, 2x graphics performance, yet consumes less energy

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iPhone 5's A6 chip has 2x CPU power, 2x graphics performance, yet consumes less energy

Every new iPhone needs a new engine, and Tim Cook has just made some bold claims about Apple's latest silicon creation: the A6 processor. He hinted at a significant shrinkage in transistor size, allowing the chip to be 22 percent smaller than the A5 and hence more energy-efficient, while at the same time -- he says -- doubling all-round CPU and graphics capabilities. By way of practical benefits, the Apple CEO promises the Pages app will load up 2.1x faster than before, while Keynote attachments will hit the screen 1.7x faster. At this point we're lacking any further detail about cores or clock speeds or indeed who actually fabricated the A6 (still Samsung, after all that bitterness?), but Apple does tend to be close-lipped on such things. In the meantime, bring on the benchmarks!

Check out all the coverage at our iPhone 2012 event hub!

Apple: A6 chip in iPhone 5 has 2x CPU power, 2x graphics performance, yet consumes less energy originally appeared on Engadget on Wed, 12 Sep 2012 13:34:00 EDT. Please see our terms for use of feeds.

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