Comparison of ASRock Radeon RX 5700 Challenger D 8G OC video card vs XFX Radeon RX 5700 DD Ultra video card by specifications and benchmarks. ASRock Radeon RX 5700 Challenger D 8G OC runs at 1.515 GHz+ 3 % base clock speed and has 8 GB of GDDR6 memory, while video card XFX Radeon RX 5700 DD Ultra runs at 1.565 GHz+ 7 % base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 180 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.