Comparison of PowerColor Liquid Devil Radeon RX 6800 XT video card vs EVGA GeForce GTX 1080 Ti FOUNDERS EDITION video card by specifications and benchmarks. PowerColor Liquid Devil Radeon RX 6800 XT runs at 1.900 GHz+ 4 % base clock speed and has 16 GB of GDDR6 memory, while video card EVGA GeForce GTX 1080 Ti FOUNDERS EDITION runs at 1.480 GHz 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.