What means "54MB AGP"?

[ATIFanboy]

I run sandra 2004 and under Video System its saying "Total memory: 256MB (256MB Video) (54MB AGP)" so what the hell means 54MB AGP, newer heard of it?

 

[JonnyBlaze]

got onboard video?

might be using system ram for video ram

JBlaze

 

[Flyermax2k3]

Originally posted by: ATIFanboy
I run sandra 2004 and under Video System its saying "Total memory: 256MB (256MB Video) (54MB AGP)" so what the hell means 54MB AGP, newer heard of it?

What kind of video card do you have? My guess is it's either the AGP aperture or shared system memory, but I don't know what video card you're using so I don't want to hazard a guess outside of that at this point in time.
Edit: nice name, btw You're sure to get plenty of flames for that I just hope you're not a troll :|

 

[Matthias99]

I would assume it means you have your AGP Aperture set to 64MB (not sure why it's showing '54' MB, as that's not usually an option for it). If your next question is 'what's AGP Aperture?', you need to go hit the search button in the upper right corner there.

 

[LTC8K6]

A 256MB video card with the system using 54MB of AGP texture memory?

 

[ATIFanboy]

Ah yes AGP aperture size I almost forgot about it. Yes i have it set to 64 in bios dont know why its show 54. Well i have Radeon 9800 XT and 1024 MB of ram so i think 64 MB aperture is optimal isnt it?

 

[modedepe]

256mb would probably be optimal based on your amount of system ram, but it tends to not make much difference in performance.

 

[ATIFanboy]

Originally posted by: modedepe
256mb would probably be optimal based on your amount of system ram, but it tends to not make much difference in performance.

Probably u dont know much about agp aperture because its uses RAM for agp textures and something else but system RAM is much slower than video ram so its not good to have 256 there.

 

[Viper96720]

If you know 64MB is optimal why even ask geeze

 

[ATIFanboy]

Originally posted by: Viper96720
If you know 64MB is optimal why even ask geeze

tell me where i write this?

 

[rbV5]

Originally posted by: ATIFanboy

Originally posted by: modedepe
256mb would probably be optimal based on your amount of system ram, but it tends to not make much difference in performance.

Probably u dont know much about agp aperture because its uses RAM for agp textures and something else but system RAM is much slower than video ram so its not good to have 256 there.

Why not? What negative affect would you expect to see from using 256MB setting vs 64MB setting?

 

[ATIFanboy]

Originally quoted from Rage3D.com
AGP Aperture.

The AGP Aperture is a portion of memory devoted to (but not exclusively) your graphics accelerator. The RAM is there if your card needs it, but is used for other tasks if it doesn?t (so, no RAM is lost in limbo waiting on your Radeon).

Many people think the higher aperture the better, or that its size should match your card?s onboard video RAM; these common misconceptions are incorrect, however. Your RAM is a LOT slower than the memory onboard your graphics card. Usually, data is only put in the AGP aperture when your graphics card runs out of onboard memory. The aperture can be thought of as a last resort. Of course, there is miscellaneous data your Radeon is liable to put into memory, even if it has more than enough available video memory.

?AGP Texturing? occurs when your card looks into your system's RAM for texture data. This is NOT good. As mentioned above, your system memory is a LOT slower than that onboard your video card. If or when your card needs to access textures from your aperture, you will notice a lot of stuttering, because, quite simply your RAM is just that slow. Even if you have PC3500 or RDRAM, it isn't anywhere near as fast as your vRAM.

Again, using the AGP Aperture causes stuttering; so, why not disable it, you ask? Well, your RAM is a lot faster than your hard drive! When it runs out of memory, the Radeon needs to put excess information somewhere, and better it be in your RAM than in your hard drive, which is infinitely slower.

So what is the optimal setting? No one can tell you that. For some, 32MB is enough. For others, 32MB results in system crashes. I personally use 128MB.

I recommend that if you have a card with a low amount of onboard memory, such as the 64MB 9100, a 128MB aperture should suffice. Cards of larger memory amounts, such as 256MB, will very rarely need the Aperture; for those, 64 or 32Mb will work. Test these settings out for yourself and see what?s best for your system.

http://www.rage3d.com/board/showthread.php?s=&threadid=33738545

 

[rbV5]

ATIFanboy, I didn't see my answer in your copy/paste. I understand what AGP aperature memory settings are for, I just want to know what negative affect using a 256MB setting vs 64MB setting is for.

"but system RAM is much slower than video ram so its not good to have 256 there"

Why is it not good to have 256 there as opposed to having 64MB for the setting in there? You have 1 GB of system Ram, the rule of thumb used to be "AGP aperature should be set to 1/2 of system ram" You blasted modedepe for suggesting 256MB(which would be 1/4 of the system ram), and suggested 64MB. Personally, I think 64 MB would be fine, but I don't think 256MB setting would make any difference. AGP memory isn't used until its needed, and its not kept from being used as system memory if its needed either. The fact that it is slower than your cards ram is irrelevent isn't it?

 

[ATIFanboy]

Because i think its used not only as a last resort therefore it cause lagg so if i have 265 mb on video ram i dont need that much of laggy "AGP Aperture size" thats my opinion.

 

[Peter]

ATIFanboy, please don't take wild guesses. The AGP graphics card only ever goes through the AGP aperture if it runs out of its own RAM and has to borrow some more from the core system.

 

[akshayt]

You should keep it at 128mb or 256mb with your system because current day games easliy take about 512-768mb ram.

 

[ATIFanboy]

Name me at least one which do so?
At moment i buy my video card there were no game which uses at least 128 MB of video RAM and this was Dec 2003.

Maybe u mean it use ram for sound or something but agp aperture is not for this i think.

 

[Evdawg]

Originally posted by: Viper96720
If you know 64MB is optimal why even ask geeze

chill man, chill.

<3