Comparison of PowerColor Red Devil Radeon RX 6900 XT Ultimate video card vs ASUS GeForce GTX 1650 OC video card by specifications and benchmarks. PowerColor Red Devil Radeon RX 6900 XT Ultimate runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card ASUS GeForce GTX 1650 OC runs at 1.485 GHz base clock speed and has 4 GB of GDDR5 memory. The TDP of the first video card is 300 W, and the second is 75 W. Compare the table of benchmark results to find out which graphic card is better.