Comparison of MSI Radeon RX 6600 MECH 2X 8G video card vs PNY GeForce GTX 1660 6GB XLR8 Gaming OC Dual Fan 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 PNY GeForce GTX 1660 6GB XLR8 Gaming OC Dual Fan runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 132 W, and the second is 130 W+ 8 %. Compare the table of benchmark results to find out which graphic card is better.