Comparison of XFX Radeon RX 5600 XT Thicc III Ultra video card vs ASUS Phoenix GeForce GTX 1660 TI video card by specifications and benchmarks. XFX Radeon RX 5600 XT Thicc III Ultra runs at 1.130 GHz base clock speed and has 6 GB of GDDR6 memory, while video card ASUS Phoenix 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 160 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.