Comparison of ASUS ROG Strix Radeon RX 6600 XT OC video card vs PowerColor Hellhound Spectral White Radeon RX 6700 XT video card by specifications and benchmarks. ASUS ROG Strix Radeon RX 6600 XT OC runs at 2.000 GHz+ 2 % base clock speed and has 8 GB of GDDR6 memory, while video card PowerColor Hellhound Spectral White Radeon RX 6700 XT runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 160 W, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.