Comparison of ASRock Radeon RX 5600 XT Challenger D 6G OC video card vs Gainward GeForce RTX 2080 SUPER Phantom video card by specifications and benchmarks. ASRock Radeon RX 5600 XT Challenger D 6G OC runs at 1.420 GHz+ 26 % base clock speed and has 6 GB of GDDR6 memory, while video card Gainward GeForce RTX 2080 SUPER Phantom runs at 1.650 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 160 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.