close on the heels of its iPad mini teardown, iFixit has performed a similar process on the fourth-technology iPad. the brand new iPad is extremely just like the earlier edition, with the principle exceptions being the transfer to a more highly effective A6X chip and a transformation to Apple’s new Lightning connector.
Of most vital hobby is in fact the A6X chip, which might be an superior model of the A6 chip that debuted in the iPhone 5, with greater photos to assist drive the iPad’s huge Retina show. A date code on the A6X finds that it used to be manufactured within the 37th week of 2012, which corresponds to mid-September, however a more particular diagnosis of the A6X will wish to watch for chip teardown consultants such as those at Chipworks to get their arms on the phase.
other interesting discoveries embrace:
– The show is manufactured by way of LG, versus the Samsung display discovered within the third-technology iPad torn down by using iFixit. Apple does, then again, supply a lot of its elements from multiple carriers, so it is doubtful whether Apple has excluded Samsung from display manufacturing on the fourth-technology iPad.
– The logic board remains the identical dimension as within the previous version, but Apple has tweaked the format of probably the most chips.
– the brand new Lightning port is housed in a body that is equal in dimension to that of the 30-pin dock connector within the previous era, which means that Apple has now not saved any inside area with the transfer to the Lightning connector. Apple will, however, nearly unquestionably take advantage of the discount in space wanted for the Lightning connector in a extra important remodel for a future generation.
30-pin dock connector from third-generation iPad (prime) and Lightning connector from fourth-technology iPad (bottom)
– The more suitable front-going through camera is quite thicker than in the earlier adaptation, but matches into the identical space inside the instrument’s body.
– The battery carries the identical A1389 section number as within the 0.33-generation iPad.
– just like in the 0.33-generation iPad, the fourth-era variation comprises 1 GB of RAM housed in two Elpida chips break away the A6X package deal.
update: Chipworks has examined the A6X, discovering that it is certainly a major transforming of the A6 discovered within the iPhone 5, unsurprisingly fascinated about pictures capabilities.
this is not simply an A6 with a couple minor tweaks. The A6 is 94mm2 while the A6X is 123mm2 – a full 30% better.So where did that further area go? smartly, firstly, it didn’t go to the CPU core. The A6X uses the equivalent CPU to the A6. same measurement, related layout. this isn’t stunning given that the prior CPU used custom layout tactics, and subsequently it could be an enormous quantity of labor to redesign so soon. a lot of the extra space has long past to the GPU cores which might be up from three to 4. more striking is that each of those GPU cores is much better.On the A6X each GPU core is eight.7mm2 whereas the A6 GPU cores are handiest 5.4mm2. the overall area occupied by way of the A6X GPU cores is greater than double that of the A6!
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