Comparison of MSI Radeon RX 6600 MECH 2X 8G video card vs GALAX GeForce GTX 1660 SUPER Prodigy video card by specifications and benchmarks. MSI Radeon RX 6600 MECH 2X 8G runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory, while video card GALAX GeForce GTX 1660 SUPER Prodigy runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 132 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.