Comparison of ASRock Radeon RX 6600 XT Challenger ITX 8GB video card vs Colorful GeForce RTX 2080 Ti CH-V 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 Colorful GeForce RTX 2080 Ti CH-V runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 160 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.