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

Posted on 19/09/2012 by Sharif Sakr

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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iPhone 5 review

Posted on 19/09/2012 by Tim Stevens

Thinner. Lighter. Faster. Simpler. The moment the iPhone 5 was unveiled we knew that it was checking off all the right boxes, folding in all the improvements and refinements people have been demanding over the past year -- yet plenty of folks still went to their respective social networks to type out their bitter disappointment. iPhone upgrade ennui seemed to be sweeping the nation, a sentiment that appeared to quickly dissipate when it came time for people to vote with their wallets.

The iPhone 5 is here -- or will be soon, anyway -- and it's every bit the device that people were asking for when the iPhone 4S came out. Its new design has less mass yet leaves room for a larger display and LTE wireless, all while increasing battery life. In nearly every respect, this is an upgrade over the 4S that came before, though it arrives almost a year later than many had hoped. Is it too late to keep pace with the rapidly iterating Android offerings, or is it so good it was worth waiting for? The answer lies below.

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iPhone 5 review originally appeared on Engadget on Tue, 18 Sep 2012 21:00:00 EDT. Please see our terms for use of feeds.

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Anandtech: Apple iPhone 5 features 1GB of RAM, A6 is a custom SoC

Posted on 16/09/2012 by Joe Pollicino

Unsurprisingly, Apple left us in the dark regarding some specifics of the iPhone 5 upon its release. Thankfully, the good folks over at Anandtech have done a bit of digging into those numbers you see bordering Apple's Apple A6 SoC, definitively figuring out that Cupertino's latest phone packs in a total 1GB of Samsung-sourced memory. The site clocks the DRAM inside at 1,066Mhz, noting that it's comprised of "two 512MB dies in a dual-channel LPDDR2 package with 32 bits per channel." Further, Anandtech lists the the speed of the iPhone 5's memory at 8,528MB/sec -- an ample 33 percent boost over the 6,400MB/sec rating for the RAM in the iPhone 4S, but well below the 12,800 MB/sec needed to drive the new iPad's bandwidth-hungry screen resolution.

Beyond that, the site believes that the A6 is Apple's first truly in-house creation, as it's using math units too new to be found in a ARM Cortex-A9 architecture (like the A5 or A5X) but reportedly isn't a match for the soon-to-be-released Cortex-A15. If true, the implication is significant -- it suggests Apple is taking the more aggressive path of a chip designer like Qualcomm and custom-tailoring large parts of its processor designs to get the speed it wants on a more exacting schedule. That's a quick summation of the details; hit up the source links below if you want the explanation in full geek speak.

Jon Fingas contributed to this post.

Filed under: Cellphones, Mobile

Anandtech: Apple iPhone 5 features 1GB of RAM, A6 is a custom SoC originally appeared on Engadget on Sat, 15 Sep 2012 23:00:00 EDT. Please see our terms for use of feeds.

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iPhone 5 hands-on!

Posted on 12/09/2012 by Darren Murph

At long last, the iPhone 5. We just got our hands on Apple's latest smartphone following its unveiling in San Francisco, and suffice it to say, it's a beautiful thing. Some might say we've been waiting for this moment since October 4th of last year, but another crowd may say that the real next-gen iPhone has been on the burner for much longer. Indeed, this is the first iPhone since June of 2010 to showcase an entirely new design, but it's obvious that Apple's not going to deviate far when it comes to aesthetics.

Apple followers will aptly recall Steve Jobs' quote in July of 2010 -- you know, that one about "no one" wanting a big phone, with current CEO Tim Cook seated just feet from Steve as the phrase was uttered. Now, however, Apple's inching ever closer to that very realm, with an elongated 4-inch display that enables new apps to take advantage of more pixels (1,136 x 640), while legacy apps can still operate within a familiar space. The phone itself doesn't feel too much different than the iPhone 4 and 4S; yes, it's a bit taller, but by keeping the width the same, you'll utilize a very familiar grasp to hold it.

In typical Apple fashion, even the finest details have been worked over tirelessly. The metal feels downright elegant to the touch, and the same line we've said time and time again applies here: there's no doubting the premium fit and finish when you clutch one of these things. Yeah, the headphone port's now on the bottom, but avid ~~Galaxy Nexus~~ iPod touch users shouldn't have too much trouble adjusting.

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iPhone 5 hands-on! originally appeared on Engadget on Wed, 12 Sep 2012 15:03:00 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

Posted on 12/09/2012 by Sharif Sakr

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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iPhone 5: the rumor roundup

Posted on 11/09/2012 by Jon Fingas

We're on the cusp of Apple's sixth iPhone launch, and there's very different expectations than there were last year. The 2011 rumor cycle left more than a few people burned: the later-than-usual October launch and repeated claims of a heavily-remade design led some to a disappointment when the iPhone 4S arrived, even though the final product had a slew of camera, speed and voice command upgrades. This year, the rumors have been grounded well before there was an event date in our hands.

There have been fewer instances of wild rumors. Instead, it's been based more around pragmatism, using either tangible leaks or sources that have a solid track record. Think of the perennial leaks from the Wall Street Journal or the increasingly well-established sourcing from iMore and The Loop. Whether you're conspiracy-minded or not, it's been hard to ignore the sheer number of claims that have tamped down expectations rather than inflated them. It's as though there's a collective fear we'll see a repeat of the 2011 hysteria and deal with fans (or detractors) complaining about missing features that were never promised in the first place.

Where last summer was full of uncertainty, this year there's a mounting consensus as to what we'll see, how we'll get it, and when. Tracking everything that's been mentioned may be a handful, however. With that in mind, we'll dive in and gauge what's likely to emerge from behind Apple's curtain on September 12th -- as well as what we can rule out from the get-go.

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iPhone 5: the rumor roundup originally appeared on Engadget on Tue, 11 Sep 2012 10:00:00 EDT. Please see our terms for use of feeds.

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AMD shows off its first Windows 8 concept tablet, we go hands-on (video)

Posted on 06/06/2012 by Dana Wollman

If Intel and Microsoft have been the royal couple of Computex 2012 (aka the world's biggest Windows 8 Ultrabook tradeshow), AMD has been the third wheel. That doesn't mean it's opted out of the festivities, though. Nope, it's chosen this week to show off its Trinity chips, and it even has its first Windows 8 concept device on display. The reference design, made by Compal, has the same form factor we've seen over and over again this week: an 11.6-inch, 1366 x 768 tablet paired with a keyboard dock. The main differences are that it has a kickstand, and packs one of AMD's Trinity A6 APUs. The chassis is on the chunky side, at a shade under 20mm, and the screen's a fingerprint magnet, but then again, we don't put too much stock in prototype designs; such details are subject to change.

Performance seemed smooth so far as we could tell, but then again, we haven't had the chance to put it through its paces, streaming HD video or attempting anything of productive value. We wish we could tell you a bit about rated battery life, but alas, AMD isn't ready to make any public claims just yet. As for the accompanying dock, the keyboard is far more spacious than what we're used to. Want to see it in action? We've got a quick walk-through of the design, with photos and video below.

Gallery: AMD Windows 8 concept tablet by Compal (hands-on)