Comparison of ASUS TUF Gaming X3 Radeon RX 5700 XT OC video card vs PowerColor Hellhound Radeon RX 6600 video card by specifications and benchmarks. ASUS TUF Gaming X3 Radeon RX 5700 XT OC runs at 1.730 GHz+ 8 % base clock speed and has 8 GB of GDDR6 memory, while video card PowerColor Hellhound Radeon RX 6600 runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 225 W, and the second is 132 W. Compare the table of benchmark results to find out which graphic card is better.