Comparison of EVGA GeForce GTX 1660 XC OC video card vs EVGA GeForce RTX 2080 Ti FTW3 Gaming video card by specifications and benchmarks. EVGA GeForce GTX 1660 XC OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card EVGA GeForce RTX 2080 Ti FTW3 Gaming runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.