That is very strange as it should be a lot more. I recently bought a laptop with one of those recent amd apu well the a4 3300m with the 6480D and dxdiag shows a total of 2gb. I believe that you have a software/driver issue that does not report how much memory that you actually have. The vram is fixed at 1gb but there should be a different total for texture which I just quoted from my own system with another 512mb outside of that. Yours should be a lot more than that. Contact customer service and start asking questions and do a few tests on your own.