Comparison of ASUS ROG Strix Radeon RX 580 video card vs Sapphire Pulse Radeon RX 6600 video card by specifications and benchmarks. ASUS ROG Strix Radeon RX 580 runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card Sapphire Pulse 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 185 W, and the second is 132 W. Compare the table of benchmark results to find out which graphic card is better.