Memory Descriptions

[Dean]

Archived from groups: alt.sys.pc-clone.gateway2000 (More info?)

I'm seeing memory discussed with two descriptions. 'Shared DDR2 SDRAM' and
'Dual Channel DDR2 SDRAM'. Is there any difference between them? If so,
how is each used and/or why?

Thanks much -- Dean

 

[Guest]

Archived from groups: alt.sys.pc-clone.gateway2000 (More info?)

Depends on the context of the discussion.

To me, 'Shared DDR2 SDRAM' implies that the memory is shared between the
graphics subsystem and main computer memory where the programs are loaded and
the work gets done. In this sort of system, the graphics subsystem actually
takes away (and subtracts from the amount of available) memory it needs from the
total in the system.

The phrase 'Dual Channel DDR2 SDRAM' may have a redundancy between "Dual
Channel" and DDR2. Or it may imply another specific memory addressing scheme in
which memory accesses occur simulataneously from two different banks of memory,
one channel allocated to each... Ben Myers

On Thu, 11 Nov 2004 21:40:21 GMT, "Dean" <w4ihk@mindspring.com> wrote:

>I'm seeing memory discussed with two descriptions. 'Shared DDR2 SDRAM' and
>'Dual Channel DDR2 SDRAM'. Is there any difference between them? If so,
>how is each used and/or why?
>
>Thanks much -- Dean
>
>
>
>

 

[Dean]

Archived from groups: alt.sys.pc-clone.gateway2000 (More info?)

I guess the machines are so fast now that 'dual use' of portions of a given
system is not now a concern (ie, the win modems of some time back).

Fast processors and 500 megs to a gig of memory to run word processing, net
access and several smaller programs simultaneously will probably serve my
need well. I have very little 'game' activity needing high speed and large
amounts of memory for high quality video.

Thanks for the response.

Dean

ben_myers_spam_me_not @ charter.net (Ben Myers) wrote in message
<4193de38.28204709@news.charter.net>...
>Depends on the context of the discussion.
>
>To me, 'Shared DDR2 SDRAM' implies that the memory is shared between the
>graphics subsystem and main computer memory where the programs are loaded
and
>the work gets done. In this sort of system, the graphics subsystem
actually
>takes away (and subtracts from the amount of available) memory it needs
from the
>total in the system.
>
>The phrase 'Dual Channel DDR2 SDRAM' may have a redundancy between "Dual
>Channel" and DDR2. Or it may imply another specific memory addressing
scheme in
>which memory accesses occur simulataneously from two different banks of
memory,
>one channel allocated to each... Ben Myers
>
>On Thu, 11 Nov 2004 21:40:21 GMT, "Dean" <w4ihk@mindspring.com> wrote:
>
>>I'm seeing memory discussed with two descriptions. 'Shared DDR2 SDRAM'
and
>>'Dual Channel DDR2 SDRAM'. Is there any difference between them? If so,
>>how is each used and/or why?
>>
>>Thanks much -- Dean
>>
>>
>>
>>
>