Comparison of Sapphire Pulse Radeon RX 5500 XT SF 4G video card vs Colorful GeForce GTX 1660 Ti NB 6G-V video card by specifications and benchmarks. Sapphire Pulse Radeon RX 5500 XT SF 4G runs at 1.607 GHz base clock speed and has 4 GB of GDDR6 memory, while video card Colorful GeForce GTX 1660 Ti NB 6G-V runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 135 W+ 4 %, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.