Comparison of ASUS Dual Radeon RX 6600 XT OC video card vs MSI GeForce GTX 1660 VENTUS XS 6G video card by specifications and benchmarks. ASUS Dual Radeon RX 6600 XT OC runs at 2.000 GHz+ 2 % base clock speed and has 8 GB of GDDR6 memory, while video card MSI GeForce GTX 1660 VENTUS XS 6G runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 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.