Comparison of Gainward GeForce GTX 1660 Pegasus OC video card vs GIGABYTE Radeon RX 470 WINDFORCE 4G 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 GIGABYTE Radeon RX 470 WINDFORCE 4G runs at 1.530 GHz base clock speed and has 4 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.