Comparison of Colorful iGame GeForce GTX 1660 Advanced OC 6G-V video card vs ZOTAC GAMING GeForce RTX 2080 video card by specifications and benchmarks. Colorful iGame GeForce GTX 1660 Advanced OC 6G-V runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card ZOTAC GAMING GeForce RTX 2080 runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 250 W+ 16 %. Compare the table of benchmark results to find out which graphic card is better.