Comparison of ASRock Radeon RX 6600 Challenger D video card vs ZOTAC GeForce GTX 1070 AMP Extreme Core video card by specifications and benchmarks. ASRock Radeon RX 6600 Challenger D runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ZOTAC GeForce GTX 1070 AMP Extreme Core runs at 1.607 GHz+ 7 % base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 132 W, and the second is 250 W+ 67 %. Compare the table of benchmark results to find out which graphic card is better.