Comparison of ASRock Radeon RX 6800 XT Phantom Gaming D 16G OC video card vs ASUS TUF Gaming GeForce GTX 1660 OC video card by specifications and benchmarks. ASRock Radeon RX 6800 XT Phantom Gaming D 16G OC runs at 1.875 GHz+ 3 % base clock speed and has 16 GB of GDDR6 memory, while video card ASUS TUF Gaming GeForce GTX 1660 OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 300 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.