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by nossralf 4789 days ago
The graphics output from the CPU is sent over Intel's own FDI (Flexible Display Interface), so the limitation lies in the PCH (chipset) that converts FDI to the various display interfaces.

I looked at one datasheet [0] for the 7-series chipsets and it didn't mention Dual Link DVI at all (although DVI was obviously mentioned). It did say "DisplayPort/HDMI/DVI 2560x1600 at 60Hz" in one of the tables, but your guess is as good as mine if that implies support for Dual Link DVI or not.

Edit: added link to referenced datasheet. See chapter 5.28.

[0] http://www.intel.com/content/dam/www/public/us/en/documents/...