Comparison of KFA2 GeForce GTX 1660 Super (1-Click OC) video card vs GALAX GeForce RTX 3090 SG (1-Click OC) video card by specifications and benchmarks. KFA2 GeForce GTX 1660 Super (1-Click OC) runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory, while video card GALAX 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 125 W, and the second is 420 W+ 20 %. Compare the table of benchmark results to find out which graphic card is better.