Is it profitable to mine Monero with GTX1080? And what would be the best hardware to mine it with?
B.R Jan
You can have a look at the hashrates of various GPUs and CPUs on monerobenchmarks.info or google docs monero gpu/cpu comparison.
The GTX 1080 should get around 590 H/s, which at the current difficulty should get you around 0.04 XMR per day.
Whether this is profitable or not depends on your electricity costs, at $0.12/kwH, you should expect the card to cost about $0.51 in power per day to run (not including the rest of the system).
You can use the cryptocompare mining calculator to check things out for yourself.
Have fun :)