Comparison of PowerColor Radeon RX 5700 XT (Radial Fan) video card vs ASRock Radeon RX 6700 XT Challenger D 12GB video card by specifications and benchmarks. PowerColor Radeon RX 5700 XT (Radial Fan) runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ASRock Radeon RX 6700 XT Challenger D 12GB runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 225 W, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.