I think right now, if your sporting a 2gb video card, that's along the lines of the 7XX series from Nvidia. -Not sure the equivalent for the AMD radeon lines.
That being said, I've never heard of any video card being able to upgrade it's ram. But as was pointed out by Beers, any video card sporting 2GB of ram is not up to playing modern day games. I'm not even sure Everquest could run very well on a 2GB card nowadays, if only because any 2GB video card is pretty low end.
I did install, recently, a Nvidia GT 710 2GB card in a budget desktop that was manufactured in 2017, but the CPU itself was using l only 6.5 watts, so a dedicated graphic card was a massive improvement. The CPU was released in 2016.
See "Project Lenovo" thread for details.