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A comment on Expected arrival times for Apple products. Parent comment

Re:Expected arrival times for Apple products by eropple on Saturday March 02, 2013 @12:24PM (#5310199)
I came by this information second-hand so I can't verify it, but I have been told that there aren't enough PCIe lanes going to each Thunderbolt port to drive a 4K panel at 60Hz. Which makes me as a rMBP owner super, super sad if it's true.
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Re:Expected arrival times for Apple products by GHFigs on Saturday March 02, 2013 @04:16PM (#5311087)
The 2011 MBP could drive two 2560x1600 displays (chained) through a single port, which requires about the same bandwidth as a single 3840x2160. So I don't think that would be an issue, though obviously the GPU is still a limitation.

I appear to be hellbanned from posting links, but I gather this from page 8 of AnandTech's review of the Thunderbolt display and the Wikipedia article for DisplayPort.

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