Comparison of ASRock Radeon RX 5600 XT Phantom Gaming D2 6G OC video card vs XFX Radeon RX 590 Fatboy 8GB video card by specifications and benchmarks. ASRock Radeon RX 5600 XT Phantom Gaming D2 6G OC runs at 1.420 GHz+ 26 % base clock speed and has 6 GB of GDDR6 memory, while video card XFX Radeon RX 590 Fatboy 8GB runs at 1.469 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 160 W, and the second is 225 W. Compare the table of benchmark results to find out which graphic card is better.