Comparison of ASRock Radeon RX 6700 XT Challenger D 12GB OC video card vs Gainward GeForce RTX 3080 Phoenix 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 Gainward GeForce RTX 3080 Phoenix runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 230 W, and the second is 320 W. Compare the table of benchmark results to find out which graphic card is better.