Comparison of ASRock Radeon RX 6600 XT Challenger Pro 8GB OC video card vs MSI GeForce GTX 1070 GAMING Z 8G video card by specifications and benchmarks. ASRock Radeon RX 6600 XT Challenger Pro 8GB OC runs at 2.033 GHz+ 3 % base clock speed and has 8 GB of GDDR6 memory, while video card MSI GeForce GTX 1070 GAMING Z 8G runs at 1.506 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 150 W. Compare the table of benchmark results to find out which graphic card is better.