Comparison of GIGABYTE GeForce GTX 1660 TI OC 6G video card vs ZOTAC GAMING GeForce RTX 2060 (ZT-T20600K-10M) video card by specifications and benchmarks. GIGABYTE GeForce GTX 1660 TI OC 6G runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory, while video card ZOTAC GAMING GeForce RTX 2060 (ZT-T20600K-10M) runs at 1.365 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 160 W. Compare the table of benchmark results to find out which graphic card is better.