x***q
发帖数: 4953 | 1 http://tech.sina.com.cn/it/2011-04-14/22435407116.shtml
http://www.eetimes.com/General/DisplayPrintViewContent?contentI
，苹果iPad 2上市近一个月，尽管也有专业网站对其进行了拆解，但其内部的A5处理器
仍有诸多谜团尚未解开。
对于A5处理器，CPU、GPU、存储管理和I/O芯片所占面积约为40%，剩余大部分空间
上的芯片都用来做什么呢？
目前还没有答案，美国《电子工程时报》(EE Times)网站认为，可能是一些专业的
芯片，从事计算或转换任务，还可能从事其他一些小任务，如图像过滤和JPEG解码等
业内人士称，A5是一个真正高度定制的系统，剩余那些未知功能令人感到兴奋，即
使目前还尚未使用这部分功能。这些芯片可能被用于视频解码、物理计算或尚未实施的
指令集，这为苹果留下来极大的拓展空间。 | s*********n
发帖数: 2283 | 2 Apple or Samsung or Intrinsity, who owns A4 design? And also A5? | x***q
发帖数: 4953 | 3 apple design, samsung manufacture ...
【在 s*********n 的大作中提到】
: Apple or Samsung or Intrinsity, who owns A4 design? And also A5?
| s*********n
发帖数: 2283 | 4 People were talking about the unusual similarities between Samsung S5PC100
and Apple A4. Possibly neither of them did the major design for A4 or
S5PC100. People said this is the company behind A4.
http://en.wikipedia.org/wiki/Intrinsity
I guess A5 may be different story. However, the design of multiple-core
CPU is very different to single-core. I guess, the memory control part may
make the difference.
【在 x***q 的大作中提到】
: apple design, samsung manufacture ...
| s********i
发帖数: 17328 | 5 businessweek 上写的是samsung从事了大量A4 design的工作。
While Apple oversaw how the chip was put together, it relied on Samsung to
design most of the circuitry, according to experts who have analyzed
detailed
photos of the A4's structure. Samsung appears to have crafted the main brain
of the chip—its core—and many of the surrounding parts that shuttle
information around and handle low-level software tasks. The end product is
one
that resembles Samsung's own chips. "The bottom line is that there weren't
many marked differences we could see," says Don Scansen, a partner at IP
Research Group and one of the chip experts who analyzed the A4.
【在 x***q 的大作中提到】
: apple design, samsung manufacture ...
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