Graphic Aperture Size and 6800GT???

128 or 256. It doesn't really matter much.


"NBK" <no.spam.TakeThisOut@spamless.net> wrote in message
news:45a1592e$0$16955$4c368faf@roadrunner.com...
> Hi
>
> What is a good setting for Graphic Aperture Size on Nvidia 6800GT 256Mb?
> 64Mb?
>
> Thanks
> NBK
 >> Stay informed about: Graphic Aperture Size and 6800GT??? 

"Roscoe" <me.DeleteThis@home.net> wrote in message news:Aagoh.1340$%Q4.195@trnddc06
> "NBK" <no.spam.DeleteThis@spamless.net> wrote in message
> news:45a1592e$0$16955$4c368faf@roadrunner.com...
>> Hi
>>
>> What is a good setting for Graphic Aperture Size on Nvidia 6800GT
>> 256Mb? 64Mb?

> 128 or 256. It doesn't really matter much.

The rule of thumb is the larger the video memory the smaller the aperture
size. The AGP aperture size is reserved system memory just under the mapped
video memory that is only used when the card needs more than the video
memory it has onoard. If the OP is not using more than the 256MB video
memory he already has then he wants to reduce the aperture size, not
increase it.
 >> Stay informed about: Graphic Aperture Size and 6800GT??? 

This debate seems to resurface once in a while...

There's no harm in setting a large aperture, because the reserved memory is
only kept from system use when the card populates it. e.g. if the aperture
size is 256 MB, and about 50 MB of textures overflows into it, the remaining
206 MB is still available for system use.

On a related note, I used to run a Radeon X1900XT 512 MB card. 3DMark 05
detected my PCIe system as having the AGP aperture set at 256 MB, and there
seems to be no way to adjust this value in BIOS.

--
"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."

"DRS" <drs.RemoveThis@removethis.ihug.com.au> wrote in message
news:45a1a572$0$22048$5a62ac22@per-qv1-newsreader-01.iinet.net.au...
> The rule of thumb is the larger the video memory the smaller the aperture
> size. The AGP aperture size is reserved system memory just under the
> mapped video memory that is only used when the card needs more than the
> video memory it has onoard. If the OP is not using more than the 256MB
> video memory he already has then he wants to reduce the aperture size, not
> increase it.
 >> Stay informed about: Graphic Aperture Size and 6800GT??? 

First of One wrote:
> This debate seems to resurface once in a while...
>
> There's no harm in setting a large aperture, because the reserved memory is
> only kept from system use when the card populates it. e.g. if the aperture
> size is 256 MB, and about 50 MB of textures overflows into it, the remaining
> 206 MB is still available for system use.

It's good that you correctly mention that AGP aperture size has nothing
to do with reserving or allocating system memory to the video card.

AGP Aperture size controls the size of the GART (Graphics Address
Remapping Table) which adjust how system memory is rearranged for
contiguous access. It's still system memory, available for general
application use.

http://www.techpowerup.com/articles/overclocking/vidcard/43
http://www.techarp.com/showFreeBOG.aspx?lang=0&bogno=32
 >> Stay informed about: Graphic Aperture Size and 6800GT??? 

Mr.E Solved! wrote:
> First of One wrote:
>> This debate seems to resurface once in a while...
>>
>> There's no harm in setting a large aperture, because the reserved
>> memory is only kept from system use when the card populates it. e.g.
>> if the aperture size is 256 MB, and about 50 MB of textures overflows
>> into it, the remaining 206 MB is still available for system use.
>
> It's good that you correctly mention that AGP aperture size has nothing
> to do with reserving or allocating system memory to the video card.
>
> AGP Aperture size controls the size of the GART (Graphics Address
> Remapping Table) which adjust how system memory is rearranged for
> contiguous access. It's still system memory, available for general
> application use.
>
> http://www.techpowerup.com/articles/overclocking/vidcard/43
> http://www.techarp.com/showFreeBOG.aspx?lang=0&bogno=32

Thanks for responding,

I moved the AGP Aperture size from 64Mb to 128Mb. BTW i have 3Gb System
RAM and 256Mb Video RAM...

NBK
 >> Stay informed about: Graphic Aperture Size and 6800GT???