I have a 1660GTX should I get a better one if so, which
no, why do you need to upgrade?
u can play almost all games low-med, maybe high on older games
there's really no reason to upgrade unless you have $$$
If you do upgrade, the 2070 is pretty good for it's price.
wether or not it makes sense to upgrade depends on your budget and what you use your pc for
without knowing that we cant really give good recommendations
What do you use your pc for?
1660GTX is still a good card
Depends. It's only worth it if you go for an RTX 2070 or equivalent. Otherwise, a step up would be a waste of money in my opinion. Also depends on your use.
gtx 1660 is a really new gpu. there is no need to upgrade just yet until nvidia releases a new generation of gpus
RTX 2070 Super is the perfect card to upgrade too,temps are kinda high tho,i idle at 55c,might just be me