Comparison of ASRock Radeon RX 6700 XT Challenger D 12GB OC video card vs GALAX GeForce RTX 2080 Ti SG (1-Click OC) 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 GALAX GeForce RTX 2080 Ti SG (1-Click OC) runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 230 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.