Comparison of PowerColor Hellhound Radeon RX 6600 XT video card vs Colorful GeForce RTX 2060 NB-V video card by specs 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 Colorful GeForce RTX 2060 NB-V runs at 1.968 GHz base clock speed and has 6 GB of GDDR6 memory. The weight is different, -- vs 900 g. The TDP of the first video card is 160 W, and the second is 160 W . Compare the benchmark results to find out which video card is better.