Comparison of PowerColor Radeon RX 580 Mining 8GB video card vs MSI Radeon RX 580 Armor 8G OC video card by specifications and benchmarks. PowerColor Radeon RX 580 Mining 8GB runs at 1.215 GHz-3 % base clock speed and has 8 GB of GDDR5 memory, while video card MSI Radeon RX 580 Armor 8G OC runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 185 W, and the second is 185 W. Compare the table of benchmark results to find out which graphic card is better.