This Project was a Flop... RX 580s in Crossfire for $100 ea. - YouTube
Szmz New 100% Original Radeon Graphics Card Rx 580 8gb Gddr5 256bit Video Card Rx580 Gpu 8gb For Mining Non Gtx 960 1050 1060 - Graphics Cards - AliExpress
AMD Radeon RX 590 Crossfire and the State of Multi-GPU Technology | TechSpot
Amazon.com: AISURIX Radeon RX 580 Graphic Cards, 2048SP, Real 8GB, GDDR5, 256 Bit, Pc Gaming Radeon Video Card for AMD, 2XDP, HDMI, PCI Express 3.0 with Freeze Fan Stop for Desktop Computer
CrossFire RX 580 + RX 480 Benchmark vs. Single GPU - YouTube
Ryzen 5 1600X with Radeon RX 580 Crossfire. : r/Amd
Upgraded from RX580 to 6600XT : r/Amd
Crossfire RX 580s = 1080 ti performance?!... well kind of - YouTube