I'm still adjusting to the 1920 x 1200 resolution of my recently purchased Dell U2412M, so the thought of anything larger is a bit beyond me right now. That, however, isn't going stop me from watching someone else go crazy in the display department. The word "crazy" might not be a strong enough word so guys, how would you describe a rig pumping out a resolution of 11,520 x 2160?
Gavin Gear on the Extreme Windows Blog coaxed Sharp into sending him three PN-K321 4K Ultra HD monitors (around $US5000 a pop), which were then plugged into an ASUS HD 7970 DirectCU II. Each screen sports a resolution of 3840 x 2160, already a fair pack of pixels for a video card to push, but 11,520 x 2160?
Turns out the 7970 was able to handle it at 30Hz and by tweaking the graphics settings, Gear was able to play Dirt 3 at around the 30fps mark. If you'd like to see a screenshot, give your router fair warning and then point your browser over here.
Of course, Gear was confident he could do better than 30fps, but he'd need to get his hands on not one, but two additional 7970s (here's what that looks like, if you're wondering). Unfortunately, while he was able to get above 60fps with this setup, the 750W PSU couldn't handle the load and would reset after a few minutes of play.
The post is meant to be a giant advertisement for Windows 8 and specifically DirectX 11, but I don't think you'd need that particular revision of Microsoft's gaming API to achieve this. That said, it is mentioned that Gear was using custom drivers from AMD, which might be tricky to get one's hands on.
Pushing the 12K PC Gaming Boundary at 1.5 Billion Pixels per Second [Extreme Windows Blog]