Comparison of ZOTAC GAMING GeForce GTX 1660 Twin Fan video card vs MSI GeForce RTX 2080 Ti Ventus GP OC video card by specifications and benchmarks. ZOTAC GAMING GeForce GTX 1660 Twin Fan runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card MSI GeForce RTX 2080 Ti Ventus GP OC 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.