XFX RX 580 8GB will only get to ~24.82 MH/s : r/gpumining
Are the RX570 and RX580 Profitable? - Mining Performance Review - 1st Mining Rig
Used Xfx Rx 590 580 8gb Graphics Cards Gpu Radeon 8gb Black Wolf Amd Video Card For Desktop Pc Screen Computer 30+ Hashrate - Handheld Game Players - AliExpress
My Six Card RX 580 AMD Ethereum Mining Rig Build! Awesome Hash Rate! - YouTube