Comparison of ASRock Radeon RX 6600 XT Phantom Gaming D 8GB OC video card vs MSI GeForce GTX 1080 Ti DUKE 11G OC video card by specifications and benchmarks. ASRock Radeon RX 6600 XT Phantom Gaming D 8GB OC runs at 2.064 GHz+ 5 % base clock speed and has 8 GB of GDDR6 memory, while video card MSI GeForce GTX 1080 Ti DUKE 11G OC runs at 1.531 GHz+ 3 % base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 160 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.