Comparison of PowerColor Red Devil Radeon RX 6600 XT video card vs MSI GeForce RTX 3070 Ventus 2X 8G video card by specifications and benchmarks. PowerColor Red Devil Radeon RX 6600 XT runs at 2.188 GHz+ 11 % base clock speed and has 8 GB of GDDR6 memory, while video card MSI GeForce RTX 3070 Ventus 2X 8G runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 160 W, and the second is 220 W. Compare the table of benchmark results to find out which graphic card is better.