Comparison of Sapphire Pulse Radeon RX 5500 XT SF 4G video card vs ASRock Radeon RX 6700 XT Challenger Pro 12GB OC 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 ASRock Radeon RX 6700 XT Challenger Pro 12GB OC runs at 2.375 GHz+ 2 % base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 135 W+ 4 %, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.