Comparison of MSI Radeon RX 580 Armor MK2 8G OC video card vs PowerColor Red Devil Radeon RX 580 8GB video card by specs and benchmarks. MSI Radeon RX 580 Armor MK2 8G OC runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card PowerColor Red Devil Radeon RX 580 8GB runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory. The weight is different, 892 g vs --. The TDP of the first video card is 185 W, and the second is 185 W . Compare the benchmark results to find out which video card is better.