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Old 04-14-07, 07:23 AM   #1
Toto25
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Default RAM right or wrong?

I've always understood that hard disc sizes get exaggerated by sellers
dividing by 1000 instead of 1024. I also understand about usable disc
space being less than quoted sizes due to sectorisation.

But I've never come across this before..

My new Dell laptop was sold as having 1024MB RAM. Both Vista and the
BIOS report the amount of RAM as 894MB. Dell CS have used both the
reasons in the first paragraph as reasons for the discrepancy. The other
suggested reason is that some of the RAM is shared with the video card -
but why as the Radeon Xpress 1150 has 256MB of its own?

Can someone explain please?
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Old 04-14-07, 08:04 AM   #2
Joe Public
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Default Re: RAM right or wrong?

RAM is never measured that way, only magnetic/optical storage media.

So it's not unlikely that the video cards Turbocache function eats up those missing megabytes.
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Old 04-14-07, 12:26 PM   #3
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Default Re: RAM right or wrong?

  • UMA mode operation requires no additional memory
  • HyperMemory™ is the innovative technology that seamlessly enables the Graphics Processing Unit to use a combination of local and shared system memory with real-time performance at a reduced consumer cost and up to 128MB of memory

amd.com
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