Comparison of PowerColor Hellhound Radeon RX 6600 XT video card vs ASUS Dual series GeForce GTX 1070 OC edition video card by specifications and benchmarks. PowerColor Hellhound Radeon RX 6600 XT runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ASUS Dual series GeForce GTX 1070 OC edition runs at 1.582 GHz+ 5 % 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.