Comparison of ASRock Phantom Gaming X Radeon RX Vega 56 video card vs MSI Radeon RX Vega 56 8G video card by specs and benchmarks. ASRock Phantom Gaming X Radeon RX Vega 56 runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory, while video card MSI Radeon RX Vega 56 8G runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory. The weight is different, 1090 g vs 1090 g. The TDP of the first video card is 210 W, and the second is 210 W . Compare the benchmark results to find out which video card is better.