Comparison of ASRock Radeon RX 6700 XT Challenger D 12GB OC video card vs MSI GeForce RTX 3070 Twin Fan 8G video card by specifications and benchmarks. ASRock Radeon RX 6700 XT Challenger D 12GB OC runs at 2.330 GHz base clock speed and has 12 GB of GDDR6 memory, while video card MSI GeForce RTX 3070 Twin Fan 8G runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 230 W, and the second is 220 W. Compare the table of benchmark results to find out which graphic card is better.