RAM.

There is no typical speed for RAM.  There is doubly-so no typical ratio of
speed of SD card vs. speed of RAM.

On Mon, Jun 4, 2012 at 7:16 AM, bob <b...@coolfone.comze.com> wrote:

> Maybe this is an easy question, but I'm not quite sure.
>
> Which is faster to read from on an Android tablet?  RAM or the SD Card?
>
> I'm guessing probably RAM, but I'm having a hard time figuring out the
> typical read speed from RAM.  I'm guessing typical RAM in an Android tablet
> is maybe 500 MHz.  So I'm guessing you can read maybe 500 megabytes per
> second?
>
> I have measured the read speed from my Galaxy Tab's SD card, and it is
> about 20 megabytes per second.  So, I'm guessing reading from RAM is about
> 25 times faster?  (at least on my Galaxy Tab)
>
> Does this sound about right?
>
>
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-- 
Dianne Hackborn
Android framework engineer
hack...@android.com

Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails.  All such
questions should be posted on public forums, where I and others can see and
answer them.

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