hi all looking at getting one of these boards for when ivy comes out but apart from the price i cant see what the difference is between them? does anyone know 
Gigabyte Z77X-D3H
http://www.overclockers.co.uk/showproduct.php?prodid=MB-390-GI&groupid=701&catid=5&subcat=2261
Gigabyte Z77X-UD3H
http://www.overclockers.co.uk/showproduct.php?prodid=MB-389-GI&groupid=701&catid=5&subcat=2261

Gigabyte Z77X-D3H
http://www.overclockers.co.uk/showproduct.php?prodid=MB-390-GI&groupid=701&catid=5&subcat=2261
Gigabyte Z77X-UD3H
http://www.overclockers.co.uk/showproduct.php?prodid=MB-389-GI&groupid=701&catid=5&subcat=2261
