Comparison of Sapphire Pulse Radeon RX 5700 XT 8G video card vs PowerColor Fighter Radeon RX 6600 XT video card by specifications and benchmarks. Sapphire Pulse Radeon RX 5700 XT 8G runs at 1.670 GHz+ 4 % base clock speed and has 8 GB of GDDR6 memory, while video card PowerColor Fighter Radeon RX 6600 XT runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 235 W+ 4 %, and the second is 160 W. Compare the table of benchmark results to find out which graphic card is better.