GTX 1080

NO! Unless you're in dire need of buggy, temperamental and an alpha level version of raytracing (with an RTX card) stick with what you've got). 1080s are still the best on the market for their price. If you're running out of video memory get a card with 11GBs of memory or consider getting a secondary card, don't get an RTX (which I assume is what you'd consider upgrading to) they're expensive and frankly, you're paying for early access to an unfinished, unpolished product.