Comparison of PowerColor Red Devil Radeon RX 6600 XT video card vs ZOTAC Gaming GeForce RTX 3060 Ti Twin Edge OC LHR 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 ZOTAC Gaming GeForce RTX 3060 Ti Twin Edge OC LHR runs at 1.410 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 200 W. Compare the table of benchmark results to find out which graphic card is better.