Latitude XT3, Intel HD Graphic

Not really, as the Intel HD Graphics 3000 GPU is integrated into the CPU, so you're pretty well stuck with what you have.

This model does allow CPU upgrades, so you could conceivably move to a higher-end CPU (with a slightly faster GPU) but it's not going to amount to much at the 2-series level. For example, if you're already at an i7, then that's probably the fastest GPU you can get.