Intell Haswell-E, the latest iteration of the HEDT Platform, has a launch date of 29 August (originally mid September) and now it seems that a few days before release we are are getting some confirmation on the PCIE lanes. It turns out that the information leaked by Coolaler was correct and the i7-5820 will only have 28 lanes of PCIE 3.0 while the 5930 and the 5960X will have 40 lanes of PCIE 3.0 each.
Intel Core i7 5820K Haswell-E HEDT Processor to Feature Only 28 PCIE 3.0 Lanes
The leaked image (courtesy of EXPReview.com) shows some very interesting wording, stating that when the i7-5820K is used, the number of PCI-E lanes will decrease. This will ofcourse result in the hexacore processor becoming unattractive to Multi GPU users although they should still have some playing room. With 28 lanes you are looking at 16x, 16x/8x, x8/x8/x8/x4 maximum GPU configuration while a normal 40 lane configuration would be 16x, 16x/16x, 16x/16x/8x or 8x/8x/8x/8x depending on the amount of GPUs you have. Considering the fact that this is PCI-E 3.0 we are talking about there is enough bandwidth for a 3-Way SLI or 4 Way Crossfire. However, if you really want that extra edge then you will have to upgrade to the i7-5930k.