Hi, I am new to gaming (sending question on behalf of my daughter).

We have a Dell Inspiron 3881 8 GB PC with an Intel UHD 630 graphics card. 

Is it possible to upgrade the graphics card to a more suitable graphics card - the game requires either an AMD Radeon HD 7870 or NVIDIA GeForce GTX 660 card.

Would these graphics cards fit into the existing chassis? Has anyone upgraded their Inspiron 3881 for gaming?

Any help gratefully received. Many thanks in advance.