Comparison of Gainward GeForce GTX 1660 Pegasus OC video card vs PNY RTX A4000 video card by specifications 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 PNY RTX A4000 runs at 0.735 GHz base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 140 W. Compare the table of benchmark results to find out which graphic card is better.