Comparison of MSI Radeon RX 6600 XT MECH 2X 8G OC video card vs ASUS ROG Strix LC Radeon RX 6800 XT OC video card by specifications and benchmarks. MSI Radeon RX 6600 XT MECH 2X 8G OC runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ASUS ROG Strix LC Radeon RX 6800 XT OC runs at 1.925 GHz+ 5 % base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 160 W, and the second is 300 W. Compare the table of benchmark results to find out which graphic card is better.