Comparison of XFX Radeon RX 590 Fatboy 8GB video card vs ASRock Intel Arc A770 Phantom Gaming D 8GB OC video card by specifications and benchmarks. XFX Radeon RX 590 Fatboy 8GB runs at 1.469 GHz base clock speed and has 8 GB of GDDR5 memory, while video card ASRock Intel Arc A770 Phantom Gaming D 8GB OC runs at 2.200 GHz+ 5 % base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 225 W, and the second is 225 W. Compare the table of benchmark results to find out which graphic card is better.