Comparison of PowerColor Hellhound Radeon RX 6600 video card vs Colorful GeForce RTX 2060 NB DUO 12G-V video card by specifications and benchmarks. PowerColor Hellhound Radeon RX 6600 runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Colorful GeForce RTX 2060 NB DUO 12G-V runs at 1.470 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 132 W, and the second is 185 W. Compare the table of benchmark results to find out which graphic card is better.