Benchmark Tests posted ASUS H87-PRO Review
A quote from the article:
This mainboard comes with a lot of features, like DisplayPort, S/PDIF audio, 4 USB ports on the back panel and CrossFireX. The HDMI is able to display the 4K resolution (4096 x 2160 @ 24 Hz). One of the USB3 ports supports a Hardware-level USB BIOS Flashback which means that the UEFI BIOS can be updated even without a processor or memory installed. (just connect the power cable and and the reset button switch cable and than press the reset button)ASUS H87-PRO Review @ Benchmark Tests
Haswell uses the new socket LGA 1150. The H87 PRO has power control of 6 Phases while the ASUS Z87 PRO has a 14 (12 + 2) Phases. The DIGI+ VRM is a digital voltage regulation instead of the analog VRM in cheaper motherboards.