Gpu mining build

Ok I just got 8 1660 supers 6g was it a good buy and how much hashrate would I make. It will be my first gpu build.

WhatToMine - Crypto coins mining profit calculator compared to Ethereum

Looks like 39.3 mh per card. You may be able to overclock and get 31 mh each…
GTX 1660 TI Mining Settings - GPU Mining | Mining Chamber
Good luck. I’m also new, I’ve been mining now for a week or so.