u/ImaginaryRemove3518

Hey people, requesting expertise here.

I've seen this setup for sale :
HP Omen Obelisk
Intel Core i7-8700 (up to 4.6 GHz, 6 cores, 12 threads)
NVIDIA GeForce GTX 1080
16Go DDR4 (hyperX)

I've checked post about wether or not GTX 1080 is a good deal or not, and I guess it is enough for the games I usually play. Today I have a GTX 1050 laptop, I understand that GTX 1080 is a solid upgrade.

My question is : Is it possible for me to plan a GPU upgrade in the future with this kind of setup ? For example a GTX 2080 if I find a good deal.
What parts are critical for a GPU upgrade ?

Thanks