I have a professional graphics program written using OpenGL. It runs very well (the memory and virtual memory usage is around 40M) on my computer (1.4G cpu, 256M ram, display adaptor GeForce2 MX/MX 400).
But when I run the same software on one of my co-worker’s computer. The memory usage went up to a few hundred Mega byte. He actually has a much better computer (2.5G cpu, 1G Ram). The only thing we can thing of is he has an integrated graphics card from intel (Intel® 82845G/GL/GE/PE/GV Graphics Controller [Display adapter]).
Is the integrated card the cause of the problem?
no any kind of texture is involved in this program. display list is used to render. I think I just want to know generally is this kind intel integrated graphics chipset perform well on OpenGL program. This question is specific on any information on Intel(R) 82845G/GL/GE/PE/GV Graphics Controller [Display adapter]
I did find something talk about this from http://www.opentechsupport.net/forums/archive/topic/27664-1.html
Any more information is welcome.
Ah yes, the performance of the Intel integrated 3d chips is crap (this is true for ALL integrated 3d solutions).
About the memory usage: Intel uses an Unified Memory Architecture (UMA) which means the graphic has no dedicated memory, instead it dynamicaly allocates the main memory as video memory (up to 128 MB I think).