Comparison of Sapphire Pulse Radeon RX 5500 XT 8G video card vs EVGA GeForce GTX 1660 BLACK GAMING video card by specifications and benchmarks. Sapphire Pulse Radeon RX 5500 XT 8G runs at 1.607 GHz base clock speed and has 8 GB of GDDR6 memory, while video card EVGA GeForce GTX 1660 BLACK GAMING runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 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.