Comparison of PowerColor Radeon RX 6800 XT video card vs ASUS ROG Strix GeForce GTX 1080 Ti OC edition video card by specifications and benchmarks. PowerColor Radeon RX 6800 XT runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card ASUS ROG Strix GeForce GTX 1080 Ti OC edition runs at 1.569 GHz+ 6 % base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 300 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.