Comparison of PowerColor Radeon RX 6400 Low Profile 4GB video card vs AMD Radeon RX 6400 video card by specifications and benchmarks. PowerColor Radeon RX 6400 Low Profile 4GB runs at 1.923 GHz base clock speed and has 4 GB of GDDR6 memory, while video card AMD Radeon RX 6400 runs at 1.923 GHz base clock speed and has 4 GB of GDDR6 memory. The TDP of the first video card is 53 W, and the second is 53 W. Compare the table of benchmark results to find out which graphic card is better.