The 5820k will do just fine with 28 lanes. 16+8+4.
I actually just got back from MicroCenter and decided to go with a 5930k and picked up my 1.2 TB Intel 750 NVMe SSD. For the mobo, they didn't have much to choose from. I ended up going with an ASUS x99-Pro USB 3.1. I'll get a Corsair H100i or equivalent when I get closer to slapping it together. I'll definitely end up going with EVGA 980 ti Hybrids so I just need a case that can accommodate all the radiators. I'm leaning towards a reasonably priced case that has the mobo in a horizontal config so next thing I need to find out is if the Thermaltake Core X9 will fit my needs.Originally Posted by Raghar
Normally x8 PCI-E 3.0 works fine.
PCI-E 2.0 x16 still works well enough to play games flawlessly (with perhaps some hiccups during loading of scenes and textures). It's really noticeable on 32 bit x8 PCI-E 1.1. But, even at that majority of games are perfectly playable.
2011 boards typically have stronger power delivery, and additional MB PCI-E related connectors, and they can survive 2x very high end cards better than smaller factor boards. 4790k are somehow bad overclockers i5 versions are better for overclocking, but you will not get HT.
Well you should know that heat removal for two high end cards and overclocked CPU can be a problem.
Looks like a neat little case. What kind of case do you have now? I ended up going with full size towers after I learned it's hard to work in small cases.