Comparison of MSI Radeon RX 6600 MECH 2X 8G video card vs GIGABYTE GeForce GTX 1060 G1 Gaming D5X 6G GDDR5X 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 GIGABYTE GeForce GTX 1060 G1 Gaming D5X 6G GDDR5X runs at 1.506 GHz base clock speed and has 6 GB of GDDR5X memory. The TDP of the first video card is 132 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.