Comparison of MSI Radeon RX 5600 XT Mech video card vs Gainward GeForce GTX 1660 Ghost video card by specifications and benchmarks. MSI Radeon RX 5600 XT Mech runs at 1.130 GHz base clock speed and has 6 GB of GDDR6 memory, while video card Gainward GeForce GTX 1660 Ghost 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.