Comparison of PowerColor Red Devil Radeon RX 6900 XT Ultimate video card vs GIGABYTE GeForce GTX 1060 WINDFORCE 2X OC D5X 6G GDDR5X video card by specifications and benchmarks. PowerColor Red Devil Radeon RX 6900 XT Ultimate runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card GIGABYTE GeForce GTX 1060 WINDFORCE 2X OC D5X 6G GDDR5X runs at 1.506 GHz base clock speed and has 6 GB of GDDR5X memory. The TDP of the first video card is 300 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.