Comparison of PowerColor Fighter Radeon RX 6600 video card vs PNY GeForce GTX 1660 SUPER 6GB Blower video card by specifications and benchmarks. PowerColor Fighter Radeon RX 6600 runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory, while video card PNY GeForce GTX 1660 SUPER 6GB Blower runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 132 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.