Comparison of MSI Radeon RX 580 Gaming X+ 8G video card vs ASRock Radeon RX 6700 XT Phantom Gaming D 12GB OC video card by specifications and benchmarks. MSI Radeon RX 580 Gaming X+ 8G runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card ASRock Radeon RX 6700 XT Phantom Gaming D 12GB OC runs at 2.457 GHz+ 6 % 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.