Not very. The problem is getting a card upgrade it with. The ones Dell will sell you will be at least $500, and there's about nowhere else to get them. You should not plan on upgrading the GPU of a notebook. Simply get the best GPU you can afford, and run it for as long as you see fit. If you've the money and you find a part for an upgrade, you can try it - but, I think you'll find, that, at that point, it's really not worth it.