• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

AGP Apreture size

S

SlickJesus

Guest
i know this has been asked SEVERAL times before...but after digging a while i can't find anything on it...

what exactly is the AGP Apreture size?
is it the amount of system ram dedicated to the video card or what?
also, what is a good size for a 128MB Radeon 9600 and a Gig of RAM? i have it set at 256MB right now, is that good?

it's all so confusing sometimes...
 
I've been wondering that as well, I have a gig of ram and a Radeon 9600XT and I've set it to 256 as well.. I think awhile ago someone told me to set it to twice the Video's ram size.. But I still dont know what it does...
 
I believe it is the amount of memory allocated to the PCI bus, I could be wrong though. As for how much to allocate, never more than half of your total system memory (512Mb RAM = <=256Mb AGP aperture).
 
This will set you straight.... Give it a read.

Edit: Well since the link won't go to the AGP Aperture section here's the rip. This guide kicks ass though and should be in every enthusiast's bookmarks IMHO:

This BIOS feature does two things. It selects the size of the AGP aperture and it determines the size of the GART (Graphics Address Relocation Table).

The aperture is a portion of the PCI memory address range that is dedicated for use as AGP memory address space while the GART is a translation table that translates AGP memory addresses into actual memory addresses which are often fragmented. The GART allows the graphics card to see the memory region available to it as a contiguous piece of memory range.

Host cycles that hit the aperture range are forwarded to the AGP bus without need for translation. The aperture size also determines the maximum amount of system memory that can be allocated to the AGP graphics card for texture storage.

Please note that the AGP aperture is merely address space, not actual physical memory in use. Although it is very common to hear people recommending that the AGP aperture size should be half the size of system memory, that is wrong!

The requirement for AGP memory space shrinks as the graphics card's local memory increases in size. This is because the graphics card will have more local memory to dedicate to texture storage. So, if you upgrade to a graphics card with more memory, you shouldn't be "deceived" into thinking that you will need even more AGP memory! On the contrary, a smaller AGP memory space will be required.

It is recommended that you keep the AGP aperture around 64MB to 128MB in size, even if your graphics card has a lot of onboard memory. This allows flexibility in the event that you actually need extra memory for texture storage. It will also keep the GART (Graphics Address Relocation Table) within a reasonable size.
 
You must log in or register to reply here.
Back
Top