Comparison of PowerColor Red Devil Radeon RX 6800 XT video card vs Colorful iGame GeForce GTX 1070 Ti Twin-V video card by specifications and benchmarks. PowerColor Red 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 GTX 1070 Ti Twin-V runs at 1.607 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 300 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.