Comparison of PowerColor Radeon RX 5500 XT ITX 8G video card vs ASUS Dual GeForce GTX 1660 TI video card by specifications and benchmarks. PowerColor Radeon RX 5500 XT ITX 8G runs at 1.607 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ASUS Dual GeForce GTX 1660 TI runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 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.