CES 2013 - This is something a little different, but we've heard about it last year and now there's finally some proper teasing from Gigabyte regarding their new dual Thunderbolt motherboards. The boards use just Intel HD4000 graphics which comes baked into any third-generation Intel Core processor features.
With just any third-gen Core i5 or Core i7 CPU and a Gigabyte dual Thunderbolt motherboard, you can take advantage of the new 4K Collage Graphics driver to push out the Ultra HD 4K resolution video stream across four normal displays. Two Thunderbolt ports can be used to split to two displays per Thunderbolt port, giving you four-display support and reaching a combined resolution of 3840x2400.
This might not sound like a lot, but offering 4K resolution support from a motherboard without a dedicated GPU is a pretty darn good feature. The new graphics driver should be available from Gigabyte's website toward the end of the month.
The dual Thunderbolt motherboards you'll find will be the Z77X-UP5 TH and the Z77X-UP4 TH.