Comparison of MSI Radeon RX 6600 XT MECH 2X 8G video card vs MSI GeForce GTX 1660 TI VENTUS 6G OC video card by specifications and benchmarks. MSI Radeon RX 6600 XT MECH 2X 8G runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card MSI GeForce GTX 1660 TI VENTUS 6G OC runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 160 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.