Comparison of MSI Radeon RX 6600 XT GAMING X 8G video card vs PNY GeForce GTX 1660 6GB XLR8 Gaming OC Single Fan video card by specifications and benchmarks. MSI Radeon RX 6600 XT GAMING X 8G runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card PNY GeForce GTX 1660 6GB XLR8 Gaming OC Single Fan runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 160 W, and the second is 125 W+ 4 %. Compare the table of benchmark results to find out which graphic card is better.