Comparison of MSI Radeon RX 6600 XT MECH 2X 8G OC video card vs EVGA GeForce RTX 2070 XC ULTRA OVERCLOCKED video card by specifications and benchmarks. MSI Radeon RX 6600 XT MECH 2X 8G OC runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card EVGA GeForce RTX 2070 XC ULTRA OVERCLOCKED 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 175 W. Compare the table of benchmark results to find out which graphic card is better.