All the A75 boards provided stronger USB 3.0 performance than the NEC PD720200 controller featured on the Asus Crosshair IV Extreme. Only the Gigabyte A75-UD4H’s Etron EJ168A showed any kind of weakness with poorer write performance. What’s most interesting about this chart is Asrock’s XFast USB software, which boosted the A75 Extreme6’s read performance by over 45%.
