Comparison of ASRock Radeon RX 6600 XT Challenger D 8GB OC video card vs PNY GeForce GTX 1070 Ti Blower V2 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 PNY GeForce GTX 1070 Ti Blower V2 runs at 1.607 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 160 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.