i7 upgrade?

[VS16]

I am looking for an upgrade for my i7-4790 @ 3.6 GHz, but an upgrade for that would require a new motherboard. Currently I am running a Dell 0KWVT8, and my new motherboard would need a GPU slot, 4 memory slots, built in WiFi and Bluetooth, and a slot for a PCIe SSD. I am probably looking at a i7-8700k or something along those lines. Any suggestions?

[VARADHARAJAN]

Its better you need to contact the dell specialized customer care , because dell manufactures own motherboard , they customize as they want . For newer cpu upgrade or gpu it needs compatible BIOS firmware .