Comparison of PowerColor Liquid Devil Radeon RX 6900 XT Ultimate video card vs Palit GeForce RTX 2080 - Super JetStream 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 Palit GeForce RTX 2080 - Super JetStream runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 245 W+ 14 %. Compare the table of benchmark results to find out which graphic card is better.