Hello Steven Bing, welcome to Toms!
Most laptop manufacturers solder in their GPU's now-a-days, so I would not recommend messing with them; it is a task meant barely for professionals.
For laptops, I do not recommend upgrades besides HDD and RAM due to the laborious task of taking the things apart, and then putting them back together. If you want something that is up-gradable, please get a desktop, otherwise just buy a new laptop every few years.
thanks!
- Harrison Whitmarsh
Lincoln Nebraska USA