None of the applications you mention actually use or need any video card, except for the Open/GL capabilities while posing or setting up. For rendering the video card isn't used at all.
The Intel Graphics Media Accelerator has support for Open/GL. This has nothing to do with 3D as used in games and most graphics cards are geared towards games and ignore other uses. Your system might work with your applications and when it does there is no need for a graphics card.