Comparison of ASUS TUF Gaming Radeon RX 6800 XT OC video card vs ASUS TUF Gaming X3 GeForce GTX 1660 SUPER Advanced video card by specifications and benchmarks. ASUS TUF Gaming Radeon RX 6800 XT OC runs at 1.875 GHz+ 3 % base clock speed and has 16 GB of GDDR6 memory, while video card ASUS TUF Gaming X3 GeForce GTX 1660 SUPER Advanced runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.