Comparison of PowerColor Liquid Devil Radeon RX 6800 XT video card vs Colorful iGame GeForce RTX 3070 Ultra OC-V video card by specifications and benchmarks. PowerColor Liquid Devil Radeon RX 6800 XT runs at 1.900 GHz+ 4 % base clock speed and has 16 GB of GDDR6 memory, while video card Colorful iGame GeForce RTX 3070 Ultra OC-V runs at 1.500 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 240 W+ 9 %. Compare the table of benchmark results to find out which graphic card is better.