Comparison of MSI Radeon RX 6600 MECH 2X 8G video card vs EVGA GeForce RTX 3080 XC3 Ultra Gaming 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 EVGA GeForce RTX 3080 XC3 Ultra Gaming runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 132 W, and the second is 320 W. Compare the table of benchmark results to find out which graphic card is better.