What is the difference between the representation of raster and vector information in video memory?

Their first difference is volume. Of course, the bitmap type of information will weigh more, and the vector one – less.
But the raster type of information gives us a more detailed concept, in contrast to the vector type of information.
Their final difference, the most noticeable, is the type of location of the code at each point. In raster, each point has its own code, and in vector, it has anchor points.