Comparison of ASRock Radeon RX 6600 XT Challenger ITX 8GB video card vs GALAX GeForce RTX 2060 SUPER Gamer (1-Click OC) video card by specifications and benchmarks. ASRock Radeon RX 6600 XT Challenger ITX 8GB runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card GALAX GeForce RTX 2060 SUPER Gamer (1-Click OC) runs at 1.470 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 175 W. Compare the table of benchmark results to find out which graphic card is better.