Comparison of PowerColor Fighter Radeon RX 6600 video card vs GIGABYTE GeForce GTX 1080 Ti Turbo 11G 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 GIGABYTE GeForce GTX 1080 Ti Turbo 11G runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 132 W, and the second is 280 W+ 12 %. Compare the table of benchmark results to find out which graphic card is better.