Comparison of MSI Radeon RX 580 Armor 4G OC video card vs EVGA GeForce GTX 1080 GAMING ACX video card by specifications and benchmarks. MSI Radeon RX 580 Armor 4G OC runs at 1.257 GHz base clock speed and has 4 GB of GDDR5 memory, while video card EVGA GeForce GTX 1080 GAMING ACX runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 185 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.