Since quite some time
Gigabyte has been equipping its boards with digital power designs. On
the Z87X-UD3H there are only high-end components when it comes to the
power design. There are for example PWM controllers from PowIRstage as
well as ICs from Interantional Recitifier. Other than that there are
"Black Solid Caps", which offer 10'000 operating hours, which is up to
three times as much than what you get from standard caps.
Easy Tune
Easy Tune is more or less a
combination of hardware and software. Via the software you can control
the different fans attached to the motherboard and you also get direct
access to the UEFI BIOS. Other than that it's possible to overclock you
system from within Windows.
Headphone Amp
Gigabyte equips this motherboard with
a headphone amplifier from Texas Instruments, which is called DRV632.
This chip is capable of handling headphones with up to 600 Ohm
resistance. Texas Instruments recommends this chip for the usage with
BluRay players or sound cards, which makes it clear that Gigabyte wants
to offer more than just standard with this motherboard.