Actually.... a cheap RX570 (with less power) can hash the same vs the best 1080ti when mining Cryptonights.
My NIVIDIA farm is now back at ZEN - well it was fun while it lasted.
The AMD farm however are still working hard on Cryptonite7.
My AMD miners (7970+R9 390) are still working on Monero. It is still marginally more profitable to mine Monero than on ZEC.