Comparison of Gainward GeForce GTX 1660 Ghost OC video card vs GIGABYTE GeForce GTX 960 WINDFORCE 2X 4GB Rev. 1.0 video card by specifications and benchmarks. Gainward GeForce GTX 1660 Ghost OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card GIGABYTE GeForce GTX 960 WINDFORCE 2X 4GB Rev. 1.0 runs at 1.152 GHz+ 2 % base clock speed and has 4 GB of GDDR5 memory. The TDP of the first video card is 120 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.