Comparison of GIGABYTE GeForce GTX 1660 SUPER GAMING 6G video card vs ZOTAC GAMING GeForce RTX 2080 Ti Blower video card by specifications and benchmarks. GIGABYTE GeForce GTX 1660 SUPER GAMING 6G runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory, while video card ZOTAC GAMING GeForce RTX 2080 Ti Blower runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 125 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.