Comparison of Gainward GeForce GTX 1660 Pegasus OC video card vs Colorful GeForce GTX 1660 6G-V video card by specs and benchmarks. Gainward GeForce GTX 1660 Pegasus OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card Colorful GeForce GTX 1660 6G-V runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 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.