Comparison of MSI Radeon RX 5500 XT Mech 8G OC video card vs ASUS Dual GeForce GTX 1660 OC EVO video card by specifications and benchmarks. MSI Radeon RX 5500 XT Mech 8G OC runs at 1.647 GHz+ 2 % base clock speed and has 8 GB of GDDR6 memory, while video card ASUS Dual GeForce GTX 1660 OC EVO runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 130 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.