Comparison of Sapphire Pulse Radeon RX 5500 XT 4G video card vs Sapphire Nitro+ Radeon RX 6800 XT video card by specifications and benchmarks. Sapphire Pulse Radeon RX 5500 XT 4G runs at 1.607 GHz base clock speed and has 4 GB of GDDR6 memory, while video card Sapphire Nitro+ Radeon RX 6800 XT runs at 1.925 GHz+ 5 % base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 135 W+ 4 %, and the second is 300 W. Compare the table of benchmark results to find out which graphic card is better.