AGP Aperture size ?

[4T5]

Could anyone explain this for me please.
I have a 7800GS+ 512mb card and 2 gig of geil.
Am i right in thinking i can up my aperture size to 256 or is it best at either 128 or 64.
It is currently at 64 by default.

Thanks for help and explanation.
I have googled and read but may need to ask a question on the answer i get.

 

[Daniel]

AGP aperture size is the ammount of system or virtual memory that is used once the physical video card memory is used up.

Just set it to 128MB and with 512MB on the video card it will be fine

There doesnt seem to be any performance boost by setting it at 256MB...128MB seems to be the norm.


Dan

 

[LoadsaMoney]

Yeah when i was on AGP i used to have mine at 128mb as as said above its the norm, but even 64mb is fine really.

 

[CSA]

I take it AGP aperture doesnt effect PCIe cards ? i always ran my AGP 6800GT at 256

 

[edgaruy1980]

In PCI express there is no negotiation on the ram shared, you can not change it, is done by the system as an interanl setting.
I have the same card and you will see no difference between 64 and 128.
What the aperture size is the amount of share memory with the system, with 512 mb is ideal 64, so the video buffer will be on the video card.
But if you have only 64 MB of video ram, you will want to add a greater aperture size so the video buffer will be on system more as you have too little video ram.
Like 64mb video ram with aperture 256 mb aperture.
I know because I done that with an old video card.
Also note only few games will use 512 mb of video ram.

 

[Cyber-Mav]

set it to 128meg

 

[OzZie]

I have mine on 256mb as it helps resolve the stuttering in BF2 sometimes.