Comparison of PowerColor Liquid Devil Radeon RX 6800 XT video card vs EVGA GeForce GTX 1080 SC2 GAMING 11GHz 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 SC2 GAMING 11GHz runs at 1.708 GHz+ 6 % base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 300 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.