Revised iPad 2 with 32-nm A5 Offers 15-30% Greater Battery Life

last month, discovered apple quietly tweaked 16 gb wi-fi ipad 2, equipping device smaller 32-nm die shrink of a5 system-on-a-chip used in line. tweaked ipad 2 carries internal identifier of "ipad2,4", first spotted in ios 5.1 beta in november, @ time unclear model represented.

similar die shrink of a5 found in new apple tv, , appears apple made move in order test out production of next-generation chip processes in lower-volume devices. a5x used in third-generation ipad continues based on 45-nm process.

anandtech has gotten hands on 1 of these new ipad 2 models , subjected series of battery life , performance tests, finding revised model offers identical performance other ipad 2 models battery life improvements of 15-30% in several benchmarking tests.

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assuming apple didn't change fundamentals of microarchitecture, ipad 2,4's gains in battery life can attributed directly process. gains significant. measured 15% increase in our web browsing battery life, 30% increase in gaming battery life , 18% increase in video playback battery life. although apple hasn't revised battery life specs, ipad 2,4 lasts longer on single charge original ipad 2.

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unfortunately, anandtech notes there appears no way customers ensure receive 1 of these revised ipad 2 models $399 purchase, there still significant number of original ipad 2 models in circulation , can not distinguished based without opening box , turning on device.

article link: revised ipad 2 32-nm a5 offers 15-30% greater battery life

 

wow... thats crazy.

 

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