Comparison of GIGABYTE RX 5500 XT D6 8G video card vs ASUS TUF Gaming X3 GeForce GTX 1660 Advanced video card by specifications and benchmarks. GIGABYTE RX 5500 XT D6 8G runs at 1.647 GHz+ 2 % base clock speed and has 8 GB of GDDR6 memory, while video card ASUS TUF Gaming X3 GeForce GTX 1660 Advanced runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 130 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.