Comparison of ASRock Radeon RX 6800 Challenger Pro 16G OC video card vs Gainward GeForce GTX 1080 Ti GS video card by specifications and benchmarks. ASRock Radeon RX 6800 Challenger Pro 16G OC runs at 1.750 GHz+ 3 % base clock speed and has 16 GB of GDDR6 memory, while video card Gainward GeForce GTX 1080 Ti GS runs at 1.506 GHz+ 2 % base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 250 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.