Comparison of ASRock Radeon RX 6800 Phantom Gaming D 16G OC video card vs GALAX GeForce GTX 1080 Ti EX OC video card by specs and benchmarks. ASRock Radeon RX 6800 Phantom Gaming D 16G OC runs at 1.850 GHz+ 9 % base clock speed and has 16 GB of GDDR6 memory, while video card GALAX GeForce GTX 1080 Ti EX OC runs at 1.850 GHz+ 9 % base clock speed and has 11 GB of GDDR5X memory. The weight is different, 1306 g vs --. The TDP of the first video card is 250 W, and the second is 250 W . Compare the benchmark results to find out which video card is better.