Comparison of PowerColor Radeon RX 5500 XT ITX 4G video card vs Gainward GeForce GTX 1080 Ti Phoenix video card by specifications and benchmarks. PowerColor Radeon RX 5500 XT ITX 4G runs at 1.607 GHz base clock speed and has 4 GB of GDDR6 memory, while video card Gainward GeForce GTX 1080 Ti Phoenix runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 130 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.