[WindowsCentral.com]

The Dell XPS 15 isn't a terrible gaming laptop. In fact, it comes with a dedicated GPU if you configure it from Dell, but that's still not enough for more demanding PC games. This is when you'll want to hook up an external GPU (eGPU) to the available Thunderbolt 3 port. We'd recommend the Razer Core X enclosure along with a GPU simply because it offers the best bang for your buck.

Full story from the WindowsCentral blog...