AGP allocation size

[marcello]

I reinstall my WIN ME by WIN XP. Performance droppes a lot and I know why. It´s problem of drivers. Look, I used SISOFT SANDRA:

WIN ME
SiSoftware Sandra

Video Adapter
Model : Matrox Millennium G550 - English
Total Memory : 93MB (32MB Video) (61MB AGP)
Texture Memory : 93MB
Supports DIME Texturing : Yes
Hardware Revision : 001
Driver 6.83


WIN XP
SiSoftware Sandra

Video Adapter
Model : Matrox Millennium G550 - English
Chipset : Matrox G550
RAMDAC : Integrated, 360 MHz
Video BIOS : v1.4.014
VGA Compatible : No
Total Memory : 32MB (32MB Video) (43MB AGP)
Texture Memory : 48MB
Supports DIME Texturing : Yes
Driver 5.91.008


Can you explain it?

[a_h]

AGP aperture size? A joke? Serious, you won't have to worry about agp aperture size since it's far away of being important.

On my machine I noticed a performance increase of <1% when going from 64 up to 256 mb.

Apart from that, windows doesn't use textures, it uses just some megs of the video memory (about 4-16 mb at worst, calculate: vertical resxhorizontal resxcolour depth=size in bits).

[Chrono_Wanderer]

yea. I asked this question also. It has something to do with the GART in Windows XP/2000 vs. the one on Windows 9x. Can't do anything about it... only Matrox can. On my Radeon 8500 and GeForce FX 5200 they get 128MB of AGP memory allowcation tho.. lol...

[marcello]

I would like to ask in Matrox forums but I havn´t got login there, so if you could...