Comparison of PowerColor Liquid Devil Radeon RX 6900 XT Ultimate video card vs Gainward GeForce RTX 3060 Pegasus video card by specifications and benchmarks. PowerColor Liquid Devil Radeon RX 6900 XT Ultimate runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card Gainward GeForce RTX 3060 Pegasus runs at 1.320 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 170 W. Compare the table of benchmark results to find out which graphic card is better.