The ASUS ROG Crosshair X870E APEX is the objective winner of this comparison, securing a lead in seven out of thirteen evaluated specifications. Its most significant advantage is the USB Type-C connectivity, which offers a 200% improvement over the ASRock H670 Steel Legend. This superior interface capability makes the ASUS ROG Crosshair X870E APEX the more advanced option for users requiring high-speed peripheral connections and modern connectivity standards across their hardware ecosystem.

Choose the ASUS ROG Crosshair X870E APEX if your primary requirement is maximizing USB Type-C connectivity for modern devices. Conversely, the ASRock H670 Steel Legend is the better choice for users prioritizing memory capacity, as it provides a 100% advantage in available memory slots. Selecting between these two motherboards depends entirely on whether your specific build configuration demands more physical RAM modules or a higher density of high-speed USB ports.