Sapphire 9250 RAMDAC speed

[Daniel]

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

Hi,

Can anyone tell me what speed both RAMDACs (not the core or memory)
operate at on this card please?

http://www.sapphiretech.com/vga/9250.asp

I can't seem to find any information about it.

Thanks,
Daniel

 

[augustus]

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

"Daniel" <atari400@paradise.net.nz> wrote in message
news:d00e0f$pqo$1@lust.ihug.co.nz...
> Hi,
>
> Can anyone tell me what speed both RAMDACs (not the core or memory)
> operate at on this card please?
>
> http://www.sapphiretech.com/vga/9250.asp
>
> I can't seem to find any information about it.

400Mhz RAMDAC

http://www.northamber.plc.uk/catalogue/view_product.asp?sku=SD0GH023A&sid=inactive

The link is for an identical ATI 128Mb 9250

 

[Daniel]

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

Augustus wrote:
>
>
> 400Mhz RAMDAC
>
> http://www.northamber.plc.uk/catalogue/view_product.asp?sku=SD0GH023A&sid=inactive
>
> The link is for an identical ATI 128Mb 9250
>
>

Thanks for the info.

I knew that other 9250s had 400MHz RAMDACs (Gigabyte for instance), just
wanted to confirm that the Sapphire one did as well. In the past I've
seen manufacturers divert from the defacto standard or reference design
- I've had two R9600Pros with 400MHz cores, but the reference design was
(initially) for a 600MHz core.

I got an email from Sapphire tech support confirming that the RAMDACs
(I'm assuming both) are indeed 400MHz.

Apparently, the 400MHz RAMDAC speed is compliant with the VESA VSIS
proposal on VGA signal quality.

 

[Daniel]

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

Daniel wrote:
> Augustus wrote:
>
> ... In the past I've
> seen manufacturers divert from the defacto standard or reference design
> - I've had two R9600Pros with 400MHz cores, but the reference design was
> (initially) for a 600MHz core.
>

Correction, I meant to refer to memory speed not GPU core speed.

 

[Guest]

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

From what I read, the RAMDAC nowadays is integrated into the GPU core, so
boardmakers cannot alter its frequency.

--
"War is the continuation of politics by other means.
It can therefore be said that politics is war without
bloodshed while war is politics with bloodshed."


"Daniel" <atari400@paradise.net.nz> wrote in message
news:d02ihs$54t$1@lust.ihug.co.nz...
> Thanks for the info.
>
> I knew that other 9250s had 400MHz RAMDACs (Gigabyte for instance), just
> wanted to confirm that the Sapphire one did as well. In the past I've
> seen manufacturers divert from the defacto standard or reference design
> - I've had two R9600Pros with 400MHz cores, but the reference design was
> (initially) for a 600MHz core.
>
> I got an email from Sapphire tech support confirming that the RAMDACs
> (I'm assuming both) are indeed 400MHz.
>
> Apparently, the 400MHz RAMDAC speed is compliant with the VESA VSIS
> proposal on VGA signal quality.