Comparison of GIGABYTE GeForce GTX 1660 SUPER GAMING 6G video card vs MSI GeForce RTX 2080 Duke 8G 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 MSI GeForce RTX 2080 Duke 8G runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 125 W, and the second is 245 W+ 14 %. Compare the table of benchmark results to find out which graphic card is better.