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http://tinyurl.com/9c5ckbk
Apple iPhone 5 features 1GB of RAM, A6 is a custom SoC

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
只翻重點。蘋果最新的手機內建三星1GB的RAM，其頻率是1.066GHz，由兩個512MB的
LPDDR2組成。

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.
iphone 5 RAM的運作速度是8.528GB/s，比4S快了33%，但仍然遠比新iPad的12.8GB/s低

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.
另外，A6處理器顯然不屬於A5系列的ARM Cortex-A9，可是偏偏也不是即將發表的
Cortex-A15。顯然這是一個蘋果完全自己設計的晶片。





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