Comparison of MSI GeForce GTX 1660 VENTUS XS 6G OC video card vs KFA2 GeForce RTX 3090 SG (1-Click OC) video card by specifications and benchmarks. MSI GeForce GTX 1660 VENTUS XS 6G OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card KFA2 GeForce RTX 3090 SG (1-Click OC) runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 130 W+ 8 %, and the second is 420 W+ 20 %. Compare the table of benchmark results to find out which graphic card is better.