Comparison of GIGABYTE GeForce GTX 1080 D5X 8G video card vs MSI GeForce GTX 1660 VENTUS XS 6G OCV1 video card by specifications and benchmarks. GIGABYTE GeForce GTX 1080 D5X 8G runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory, while video card MSI GeForce GTX 1660 VENTUS XS 6G OCV1 runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 180 W, and the second is 130 W+ 8 %. Compare the table of benchmark results to find out which graphic card is better.