Comparison of Gainward GeForce GTX 1660 Ghost OC video card vs NVIDIA GeForce GTX 1060 6GB (GDDR5X) video card by specs 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 NVIDIA GeForce GTX 1060 6GB (GDDR5X) runs at 1.530 GHz base clock speed and has 6 GB of GDDR5X memory. The weight is different, -- vs . The TDP of the first video card is 120 W, and the second is 120 W . Compare the benchmark results to find out which video card is better.