Comparison of Sapphire Pulse Radeon RX 5500 XT SF 4G video card vs GALAX GeForce RTX 2080 Dual Black 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 GALAX GeForce RTX 2080 Dual Black runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 135 W+ 4 %, and the second is 215 W. Compare the table of benchmark results to find out which graphic card is better.