Comparison of Sapphire Pulse Radeon RX 6600 video card vs MSI GeForce GTX 1660 VENTUS XS 6G OC video card by specifications and benchmarks. Sapphire Pulse Radeon RX 6600 runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory, while video card MSI GeForce GTX 1660 VENTUS XS 6G OC 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.