I have the X51 (2012) with the i7-3770 and the GeForce GTX 555. It really needs an upgrade to the graphics as its starting to struggle with a few of my programs and games (I let GeForce do optimal settings). I've compared the specs of the GTX 555 with a few cards and it looks like I can do an easy swap with a GeForce GTX 1050 but I thought id ask first in case I'm wrong or I've missed something. And according to this post https://community.dell.com/message/54050 I have the 330W

Is the GTX 1050 ok