Comparison of MSI Radeon RX 6600 XT GAMING X 8G video card vs Gainward GeForce RTX 3070 Phoenix video card by specifications and benchmarks. MSI Radeon RX 6600 XT GAMING X 8G runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Gainward GeForce RTX 3070 Phoenix 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.