Comparison of MSI Radeon RX 6600 XT MECH 2X 8G OC video card vs Colorful GeForce RTX 3080 NB 10G-V 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 Colorful GeForce RTX 3080 NB 10G-V runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 160 W, and the second is 320 W. Compare the table of benchmark results to find out which graphic card is better.