Comparison of PowerColor Radeon RX 5700 XT video card vs ASUS ROG Strix LC Radeon RX 6900 XT TOP video card by specifications and benchmarks. PowerColor Radeon RX 5700 XT runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ASUS ROG Strix LC Radeon RX 6900 XT TOP runs at 1.950 GHz+ 7 % base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 225 W, and the second is 300 W. Compare the table of benchmark results to find out which graphic card is better.