Comparison of GIGABYTE GeForce GTX 1660 D5 6G video card vs Colorful GeForce RTX 2060 NB EX 12G-V video card by specifications and benchmarks. GIGABYTE GeForce GTX 1660 D5 6G runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card Colorful GeForce RTX 2060 NB EX 12G-V runs at 1.470 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 185 W. Compare the table of benchmark results to find out which graphic card is better.