Comparison of GIGABYTE GeForce GTX 1660 GAMING 6G video card vs EVGA GeForce RTX 2080 Ti XC Gaming video card by specifications and benchmarks. GIGABYTE GeForce GTX 1660 GAMING 6G runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card EVGA GeForce RTX 2080 Ti XC 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.