Comparison of ASRock Radeon RX 5500 XT Challenger D 8G OC video card vs GALAX GeForce GTX 1080 video card by specifications and benchmarks. ASRock Radeon RX 5500 XT Challenger D 8G OC runs at 1.685 GHz+ 5 % base clock speed and has 8 GB of GDDR6 memory, while video card GALAX GeForce GTX 1080 runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 130 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.