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iPad 3 logic board with 'A5X' chip purportedly snapped by Mr. Not-so-Blurrycam
Well, if it looks real, sounds real and is halfway logical, we probably should distrust it all the more. Yes, it's the time when all the rumors, photoshops and general hysteria around Apple's next slab reaches its apex. The photo above was grabbed by the steady hand of sas126, a blurrycam snapper in name only, and posted to Chinese site Weiphone, purporting to be the logic board for the iPad 3. The big news (if true) is the "A5X" silicon, suggesting we'll see an incremental enhancement rather than the wholesale revolutions evident in the A4 and A5 chips that accompanied its predecessors. The SoC (with the Apple logo, to the right of the two Hynix memory modules) carries a date-stamp of 1146, suggesting it was produced in the 46th week of last year. Of course, now that we're getting so close to the actual event, whatever Tim Cook whips out on stage will never match whatever we'd conjured up on our own hearts: so try to dampen down that rampant excitement because we've still got 17 days left to wait.
XBMC comes to the iPad
We were politely asked to keep quiet about this until today, but here's the truth: XBMC now runs on the Apple A4, period. As in, there's no reason why you can't install that shiny new Apple TV 2 version of the media center software on your jailbroken iPad or iPhone 4 too. Find instructions at our more coverage link... then give the hackers and developers a cheer.
iPod touch (2010) torn down, found to contain an awful lot of battery
As predictable as the sun rising somewhere over east Japan, the iFixit crew have put their tools and wits to the task of deconstructing the latest generation of iPod touch. Their teardown is still ongoing (exciting, isn't it?), but here are their observations so far. The new touch is noted as being the easiest to crack open yet, and yes, its retina-busting 640 x 960 LCD is fused to the external glass, just like the iPhone 4. There's an 11-gram EMI shield between the front end and the battery, accounting for a lofty 10 percent of the portable media player's weight. Beyond it, you'll find a chunky 3.44Whr Li-Pol cell, which is soldered to the board as is usual Apple practice, but a novelty here is that the headphone jack isn't. Great, tie down the thing we might want to replace and untether the one we don't care about. We'll keep you updated with any other salient info as it arises, but for now, go check out the source link for more pictures of the undressed iPod touch. The front-facing camera has been found, as expected, to be the exact same module as built into the iPhone 4. The WiFi antenna is located just under the front glass panel, a position said to have allowed for the new all-aluminum back on the iPod touch. Another shock: the A4 chip that drives the iPad and iPhone 4 is also found on the 2010 touch, and its markings confirm a 256MB RAM allowance.
iPhone 4 vs. Galaxy S, part deux: HD video playback (video)
We just couldn't leave this face-off of superscreens alone, and went back for another bite at the cherry. Admittedly, we found out the Galaxy S had a browser-specific brightness setting that we hadn't maxed out before setting off our camera hounds, so we've gone and remedied earlier comparison shots with the gallery below, and just as a bonus, we've now also run a HD video clip on both phones. This was to see how the Hummingbird and A4 SOCs, considered close siblings, handled some taxing video work and also to again compare performance deep down on the pixel level. What we can tell you now is that both handsets chewed through the 1080p HD clip with ease and that both gave results we have no hesitation in describing as sublime. Click past the break for the up close and personal video comparison action. N.B. -- We ran a 1080p clip on both phones' respective YouTube apps over WiFi. Although we're certain from the quality of the video that it was at least 720p, we can't say for sure that it was the full 1080 enchilada.%Gallery-96333%
Apple's A4 is like Samsung's S5, except where it's not
Though the Apple iPad and the Samsung Wave most assuredly share the same brain, EE Times would like you to know there's more to a chip than its core -- analyzing Apple's system-on-a-chip designs in detail back to early iPhones, the publication noticed that Cupertino's silicon both has custom design quirks on top of ARM and shows heavy influence from Samsung as well. EE Times claims that while the A4 and Samsung S5PC110 are similar, there are certainly differences, enough to call the A4 a custom design. Essentially, Apple has a taken a one-size-fits-all product originally engineered to meet the needs of a broad range of OEMs and reduced its complexity, footprint, and cost to match Apple's particular goals. As far as whether PA Semi or Intrinsity had a hand in that design, the authors suggest only the latter seems very involved. What all this means for intellectual property questions is anyone's guess -- we'll let the lawyers fight that one out -- but when you encounter diehard fans that claim one's ripping off the other, at least now you'll be able to calmly explain the situation. Find the deep technical dive at our source link.
Apple's A4 system-on-chip gets decoupled from iPad, investigated with the help of an X-ray
Ever so gently, we're starting to peel away the layers of mystery surrounding the A4 system-on-chip that powers Apple's fancy new slate device. iFixit, helped by reverse engineering firm Chipworks, have gone to the trouble of both dissecting and X-raying the iPad's central processing hub in their quest to lift the veil of ignorance. Their findings confirmed that the A4 is built using a "package on package" method, meaning that the 256MB of Samsung-provided SDRAM is stacked immediately atop the CPU, which is noted as being reductive to both latency and energy use. With a single core processor inside, the iFixit team concluded the iPad had to be running on a Cortex A8 -- which is very much the likeliest choice at this point -- but their assertion that it couldn't be a Cortex A9 MPCore inside is inaccurate, as those chips also come in single-core options. Either way, it'll be interesting to see how it stacks up against Samsung's Hummingbird chip, which was designed by Intrinsity, the same company Apple is being rumored to have recently acquired. Finally, the visual inspection of the iPad's mobo puts a model number to the already known PowerVR GPU, narrowing it down to the SGX 535, while also naming and picturing a number of other exciting components, such as the always popular capacitive touchscreen controller. Hit the source link below for all the lurid images.
Apple's A4 SoC faces Qualcomm Snapdragon in knock-down-drag-out benchmarking test
Up until now, a shroud of mystery has surrounded Apple's custom engineered A4 system-on-chip; we know it's clocked at 1GHz, likely tied to Apple's prior acquisition of P.A. Semi and manufactured by Samsung. Outside of that, the only other knowledge we've gained has come not from the mouth of Cupertino, but from the extracting wizards over at iFixit. The A4 contains at least three layers of circuitry layered on top of each other, though it's packaged just like the iPhone processor: microprocessor in one package and two memory modules in the other package. We also learned that the iPad RAM is actually inside of the A4 processor package, and we're expecting to learn even more from those folks in the coming days. All that said, there's still much debate on whether Apple's own silicon can stand up to Qualcomm's heralded 1GHz Snapdragon, the chip powering Google's Nexus One among other things. AnandTech pitted their iPad against the iPhone 3GS (600MHz ARM Cortex A8) and the aforesaid Nexus One (1GHz Snapdragon QSD8250), using a number of website loads as the primary benchmark. Overall, the A4 proved to be around 10 to 30 percent faster, though it's impossible to say what effect the operating system has on things. Have a gander at that source link for more -- we get the feeling the competitions have just begun.
Ars: Apple A4 CPU is a "feature-stripped ARM Cortex A8"
While much of the speculation over the iPad's Apple A4 CPU has been focused on the fact that it was a system-on-a-chip (SoC) designed by the minds acquired from P.A. Semi, Ars Technica's Jon Stokes has another take on the story. In a Sunday post, Stokes (who claims to have an inside scoop) notes that the chip really isn't anything more than an ARM Cortex A8 that has been stripped of much of its I/O functionality. The ARM Cortex A8, running at 600 MHz, is the SoC that powers the iPhone 3GS. Stokes goes on to note that the "A4 is a 1GHz custom SoC with a single Cortex A8 core and a PowerVR SGX GPU." What Apple appears to have done is to improve both battery life and speed by eliminating any functionality that isn't specifically required by the iPad. Common Cortex A8-based SoCs often have more onboard functions than are really required by mobile phones so that manufacturers don't need to design a special chip. As the article states, the usual Cortex A8-based SoC has infrared, RS232 serial, USB, keypad controller, and camera blocks to handle multiple input and output devices. The iPad, of course, will only need one USB port and one serial UART, both wired to the 30-pin connector at the bottom of the device. By stripping the A4 to the essentials, the heart of the iPad expends no CPU cycles or power doing anything that is unnecessary to the function of the device. Stokes believes that the real power of the device comes from the software, not from the A4, and in his conclusion he compares the iPad to the Nintendo Wii - "... another product that relies for its success not on its processor, but on its novel interface and broadly accessible software. I'm sure that if the iPad can do for mobile computing what the Wii did for console gaming, Apple will consider it a resounding success." With less than a month to go until the first iPads begin to make it into the hands of users, it's likely that other revelations about the hardware used in the devices will begin to make their way to the online media. [via AppleInsider]
iPad confirmed to use PowerVR SGX graphics, Apple job posting suggests A4 chip will hit other products
It may not be as big a surprise as the A4 itself was, but Apple has now confirmed via the latest iPad SDK Beta 3 documentation that the iPad does indeed use PowerVR SGX graphics hardware as part of its custom system-on-a-chip, which flatly contradicts previous reports of A4 using Mali, and lines up with what our pal Anand Shimpi has been telling us lately. What Apple doesn't confirm, unfortunately, is exactly which chip in the PowerVR SGX family the iPad uses, so it's still at least possible that it could pack a bigger punch than the iPhone or iPod touch. In related news, a recent Apple job posting has now also offered up the first hard evidence that Apple might actually be putting its huge investment in A4 to use other platforms besides the iPad -- shocking, we know. That job is for an Engineering Manager, who would lead a team focused on the "bring-up of iPhone OS on new platforms," and would otherwise be responsible for "low level platform architecture, firmware, core drivers and bring-up of new hardware platforms" -- experience with ARM-based SoCs is also an "additional success factor." Sound like the job you've been waiting for? Then hit up the link below for the complete details.
Apple's A4 chip is ARM Cortex A9 with an ARM Mali GPU?
For some of us, amid all the hubbub about revolutions and whatnot yesterday, the most significant announcement on hand was Apple's supposedly custom A4 CPU. Alas, in the cold and brutal light of the morning after, we're hearing that it is in fact a system-on-a-chip driven by a Cortex-A9 MPCore CPU "identical" to the one found inside NVIDIA's Tegra 2, while besting the iPhone 3GS significantly with its 1GHz speed and multicore architecture. The A4 is composed of that Cortex barnburner, an integrated memory controller, and the Mali GPU, making it an all ARM affair -- though we still don't know how much Apple and PA Semi did in terms of arranging and integrating those components within the silicon. While still not 100 percent confirmed, it would seem there were no revolutions on the iPad's processing front -- just a rebranded bit of well engineered hardware.
iPad powered by custom 1GHz Apple A4 chip
Look out Intel and friends, Apple is using its own P.A. Semi technology for a custom 1GHz "Apple A4" chip in the iPad. Apple claims to get 10 hours of battery life out of this sucker, along with a month of standby. Update: we got a picture of the processor courtesy of the iFixit Twitter feed. The chip was apparently manufactured in September of last year! Also, we've got hands-on with the iPad for your external fixations.
