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Why no 256-bit memory interfaces for Athlon 64?

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  #1  
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pigdos
 
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Default Why no 256-bit memory interfaces for Athlon 64? - 10-25-2006 , 11:13 AM






If the Xbox 360 and numerous video cards can implement 256-bit memory
interfaces why couldn't AMD? I realize it would require a new socket
architecture, but 128 additional pins couldn't be that much trouble could
it?

--
Doug



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Del Cecchi
 
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Default Re: Why no 256-bit memory interfaces for Athlon 64? - 10-25-2006 , 12:34 PM






pigdos wrote:
Quote:
If the Xbox 360 and numerous video cards can implement 256-bit memory
interfaces why couldn't AMD? I realize it would require a new socket
architecture, but 128 additional pins couldn't be that much trouble could
it?

Yes it could. That be a lot of pins. And a lot of extra grounds as
returns, and a lot of noise.

--
Del Cecchi
"This post is my own and doesn’t necessarily represent IBM’s positions,
strategies or opinions.”


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David Kanter
 
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Default Re: Why no 256-bit memory interfaces for Athlon 64? - 10-25-2006 , 01:01 PM




pigdos wrote:
Quote:
If the Xbox 360 and numerous video cards can implement 256-bit memory
interfaces why couldn't AMD? I realize it would require a new socket
architecture, but 128 additional pins couldn't be that much trouble could
it?
Why waste the pins when the memory controller isn't that wide? And
what consumer wants to buy 4 DIMMs for their home PC?

DK



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Felger Carbon
 
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Default Re: Why no 256-bit memory interfaces for Athlon 64? - 10-25-2006 , 04:22 PM



"pigdos" <NA (AT) nowhere (DOT) com> wrote

Quote:
If the Xbox 360 and numerous video cards can implement 256-bit memory
interfaces why couldn't AMD? I realize it would require a new socket
architecture, but 128 additional pins couldn't be that much trouble could
it?
AMD?? Have you counted the number of pins on the memory data path of
*Intel* chips these days?




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Dave
 
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Default Re: Why no 256-bit memory interfaces for Athlon 64? - 10-25-2006 , 05:27 PM



On 25 Oct 2006 10:01:23 -0700, "David Kanter" <dkanter (AT) gmail (DOT) com>
wrote:


Quote:
Why waste the pins when the memory controller isn't that wide? And
what consumer wants to buy 4 DIMMs for their home PC?

.... never owned a 486 then ...
--
Remove any underwear before replying by email


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nobody@nowhere.net
 
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Default Re: Why no 256-bit memory interfaces for Athlon 64? - 10-25-2006 , 09:45 PM



On Wed, 25 Oct 2006 15:13:03 GMT, "pigdos" <NA (AT) nowhere (DOT) com> wrote:

Quote:
If the Xbox 360 and numerous video cards can implement 256-bit memory
interfaces why couldn't AMD? I realize it would require a new socket
architecture, but 128 additional pins couldn't be that much trouble could
it?
Why should they? Athlons are not at all limited by memory bandwidth.
What was the gain in transition from DDR to DDR2? Next to nothing.
And every extra pin costs extra. AMD has better uses for the money.

NNN



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pigdos
 
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Default Re: Why no 256-bit memory interfaces for Athlon 64? - 10-25-2006 , 10:33 PM



Excellent point. I remember buying my 30 pin SIMM's in 4's, so his argument
isn't one...

--
Doug
"Dave" <emailmeat.pants (AT) gmail (DOT) com> wrote

Quote:
On 25 Oct 2006 10:01:23 -0700, "David Kanter" <dkanter (AT) gmail (DOT) com
wrote:


Why waste the pins when the memory controller isn't that wide? And
what consumer wants to buy 4 DIMMs for their home PC?


... never owned a 486 then ...
--
Remove any underwear before replying by email



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pigdos
 
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Default Re: Why no 256-bit memory interfaces for Athlon 64? - 10-25-2006 , 10:34 PM



Couldn't AMD also charge the consumer more money for those extra pins? Maybe
call it the AMD Athlon 64 X2 Extreme edition?

--
Doug
"nobody (AT) nowhere (DOT) net" <mygarbage2000 (AT) hotmail (DOT) com> wrote

Quote:
On Wed, 25 Oct 2006 15:13:03 GMT, "pigdos" <NA (AT) nowhere (DOT) com> wrote:

Why should they? Athlons are not at all limited by memory bandwidth.
What was the gain in transition from DDR to DDR2? Next to nothing.
And every extra pin costs extra. AMD has better uses for the money.

NNN




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  #9  
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pigdos
 
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Default Re: Why no 256-bit memory interfaces for Athlon 64? - 10-25-2006 , 10:35 PM




Of course I realize it's extra trouble, but why couldn't AMD charge a
premium price for Athlon 64's so equipped?

--
Doug
"Del Cecchi" <cecchinospam (AT) us (DOT) ibm.com> wrote

Quote:
pigdos wrote:
If the Xbox 360 and numerous video cards can implement 256-bit memory
interfaces why couldn't AMD? I realize it would require a new socket
architecture, but 128 additional pins couldn't be that much trouble could
it?


Yes it could. That be a lot of pins. And a lot of extra grounds as
returns, and a lot of noise.

--
Del Cecchi
"This post is my own and doesn’t necessarily represent IBM’s positions,
strategies or opinions.”



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  #10  
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Franc Zabkar
 
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Default Re: Why no 256-bit memory interfaces for Athlon 64? - 10-27-2006 , 04:39 AM



On Thu, 26 Oct 2006 02:33:04 GMT, "pigdos" <NA (AT) nowhere (DOT) com> put finger
to keyboard and composed:

Quote:
Excellent point. I remember buying my 30 pin SIMM's in 4's, so his argument
isn't one...
I think it's a question of cost and convenience. For example, just
because I remember TVs that didn't have remote controls, does that
mean I should be prepared to accept a new TV that doesn't have one?

I also remember early memory boards that used socketed DIP chips, and
I recall the original IBM AT which used piggy-backed DRAMs ...

Quote:
Doug
"Dave" <emailmeat.pants (AT) gmail (DOT) com> wrote in message
news:vilvj21k91nfhm2b5tnrfq2sjqnud5v5gv (AT) 4ax (DOT) com...
On 25 Oct 2006 10:01:23 -0700, "David Kanter" <dkanter (AT) gmail (DOT) com
wrote:


Why waste the pins when the memory controller isn't that wide? And
what consumer wants to buy 4 DIMMs for their home PC?


... never owned a 486 then ...
--
Remove any underwear before replying by email

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.


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