Comparison of ASUS Dual Radeon RX 580 8G video card vs MSI Radeon RX 6700 XT GAMING 12G video card by specifications and benchmarks. ASUS Dual Radeon RX 580 8G runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card MSI Radeon RX 6700 XT GAMING 12G runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 185 W, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.