externalGPU on Inspiron 7573 2 in 1

@tazzat223  An eGPU requires a PCIe interface to the system, just like a desktop GPU plugs into a PCIe slot on a motherboard. The only way to get that is with Thunderbolt. A USB-C port that supports DisplayPort just means there’s an output from the internal GPU wired to that port so you can use the USB-C port as a video output for a display, but that is completely different from running an eGPU.

Which one will be working for me. I got a free m2 slot. The other option is to remove the Wi-Fi card and to have a free mini PCI-E slot.

Without a Thunderbolt port, absolutely not.

Even with one, Dell supports eGPU only on Alienware notebooks - not on XPS or Inspiron, and many have reported trouble with XPS systems, so don't expect it to be an easy path to traverse if you try.

This isn't really a practical option, unless you plan to turn the notebook into a desktop - you won't be able to reinstall the keyboard and/or bottom cover, because there is no space inside to route the video cables, which will be hefty.

If that's your plan, you're better off buying a desktop system and keeping the notebook for mobile use - because the notebook will fail its mobility purpose once you install a video card in an M.2 slot (if in fact one even works).

Thank you for the answers. But maybe is really better to build a cheap desktop gaming PC, for few hundreds more. I already got a desktop case, HDD and PSU. So i can buy just a better CPU, MB, RAM and GPU.

@tazzat223  in addition to the problems mentioned by @ejn63 , if the M.2 slot you freed up is normally meant for a WiFi card, then it will only have a PCIe x1 interface wired to it, which will significantly bottleneck your eGPU.  If you have an extra M.2 slot meant for an SSD, then it will probably have either an x2 or x4 interface, which would be better (Thunderbolt 3 itself offers PCIe x2 or x4, depending on what the system manufacturer decided to do), but it would still be a very inconvenient solution.