Comparison of ASRock Radeon RX 6600 XT Challenger D 8GB OC video card vs Colorful GeForce RTX 3070 NB-V video card by specifications and benchmarks. ASRock Radeon RX 6600 XT Challenger D 8GB OC runs at 2.000 GHz+ 2 % base clock speed and has 8 GB of GDDR6 memory, while video card Colorful GeForce RTX 3070 NB-V runs at 1.500 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 220 W. Compare the table of benchmark results to find out which graphic card is better.