Comparison of MSI Radeon RX 6600 MECH 2X 8G video card vs EVGA GeForce RTX 3090 KINGPIN HYDRO COPPER 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 3090 KINGPIN HYDRO COPPER GAMING runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 132 W, and the second is 420 W+ 20 %. Compare the table of benchmark results to find out which graphic card is better.