Comparison of ASRock Radeon RX 6600 XT Phantom Gaming D 8GB OC video card vs ZOTAC GeForce GTX 1070 AMP Extreme Core video card by specifications and benchmarks. ASRock Radeon RX 6600 XT Phantom Gaming D 8GB OC runs at 2.064 GHz+ 5 % 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 160 W, and the second is 250 W+ 67 %. Compare the table of benchmark results to find out which graphic card is better.