Comparison of ASRock Radeon RX 5600 XT Challenger D 6G OC video card vs GALAX GeForce RTX 2080 Dual Black 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 GALAX GeForce RTX 2080 Dual Black runs at 1.515 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 215 W. Compare the table of benchmark results to find out which graphic card is better.