If anything AMD released the RX 5600 xt and its strictly for 1080p, if it was me i would do the rx 5600 xt and ive heard nothing but great about the card, nothing wrong with the 1660 super
1660 super is decent. About the same performance as a gtx 1070. I have one and it's a decent card. But if you can spend a little more and get either a 5600xt or a 5700.