Comparison of MSI Radeon RX 580 Armor 8G OC video card vs MSI GeForce GTX 1080 Ti Founders Edition video card by specifications and benchmarks. MSI Radeon RX 580 Armor 8G OC runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card MSI GeForce GTX 1080 Ti Founders Edition runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 185 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.