Comparison of Acer PREDATOR BIFROST Intel Arc A770 OC 16GB video card vs ASRock AMD Phantom Gaming U Radeon RX 590 8G OC video card by specs and benchmarks. Acer PREDATOR BIFROST Intel Arc A770 OC 16GB runs at 2.200 GHz+ 5 % base clock speed and has 16 GB of GDDR6 memory, while video card ASRock AMD Phantom Gaming U Radeon RX 590 8G OC runs at 2.200 GHz+ 5 % base clock speed and has 8 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 225 W, and the second is 225 W . Compare the benchmark results to find out which video card is better.