prices in NZ for those cards?
go for 2070 obv better perf almost same price, new tech
apparently they're quite similar, but getting a 2070 would make it easier to upgrade later down the line.
RTX tech is only used in a few games, so if u could get ur hands on a 1080 for a little lower price, its more worth it. 1080 performs better at certain things, and 2070 performs mainly better with the RTX tech, which is only used in a few games; Battlefield V is one of them
If you want something better than RTX 2070, then you should go for RTX 2080, GTX 1080Ti or RTX 2080Ti.
RTX 2070 is 4th best GPU from Geforce atm. So the choice is quite obvious i guess.
RTX 2070 - less power hungry, a bit more performance. RTX is very nice looking in several games and there are likely to be more of them.
GTX1080 - cheaper with comparable performance.
I'd say 2070 if you have the extra bucks fro it.