Comparison of Sapphire Pulse Radeon RX 5500 XT SF 4G video card vs Sapphire Pulse Radeon RX 5500 XT SF 8G video card by specs 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 Sapphire Pulse Radeon RX 5500 XT SF 8G runs at 1.607 GHz base clock speed and has 8 GB of GDDR6 memory. The weight is different, -- vs --. The TDP of the first video card is 135 W+ 4 %, and the second is 135 W+ 4 % . Compare the benchmark results to find out which video card is better.