Comparison of ASRock Radeon RX 6600 Challenger ITX video card vs ASUS ROG Strix GeForce RTX 2080 video card by specifications and benchmarks. ASRock Radeon RX 6600 Challenger ITX runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ASUS ROG Strix GeForce RTX 2080 runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 132 W, and the second is 215 W. Compare the table of benchmark results to find out which graphic card is better.