Comparison of ASUS Dual GeForce GTX 1660 OC EVO video card vs KFA2 GeForce RTX 3080 Ti SG (1-Click OC) video card by specifications and benchmarks. ASUS Dual GeForce GTX 1660 OC EVO runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card KFA2 GeForce RTX 3080 Ti SG (1-Click OC) runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 120 W, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.