You're moving goalposts. This discussion was not about my upgrade, it was about your very questionable decision to upgrade from sandybridge to skylake when you knew you were already GPU limited.
As I said in my previous post, this is simply your mistake for thinking you'd magically get more performance, when the only way to do so at that high resolution is to go multi-GPU.
If you'd spend 5 minutes looking over the 6700k reviews, you'd have seen that at high resolution (1440p, 2160p) Skylake, or even Haswell, over very little gains over Sandybridge, expect in CPU bound games (mmo's, arma3 engine, etc etc).
Buddy I'm not going to argue with you, I ran things like FSXMark and it showed very little improvement and I checked other peoples benchmarks with FSXMark and it didn't add up, then I realised they were running 1080p and lower in some cases which is why their benchmarks looked good, sadly half of the benchmarks they put up are ego trips/epeen more than reality or they fiddled with the CFG file when they were told it needs to be a stock FSX configuration.
I may have another 6700k soon to try as I'm building a new system for my niece as a graduation gift from the one I gave her as a University gift when she enrolled to medical school, so will be updating her 2500k to a new one as her system is going to be given to her brother as a gift from me too after I stick it in a new case and make it a boy like system hers is all red and girly as she likes it with red water cooling

, so have to rebuild her loop too and give it a good clean as it has been running for many years and had a few changes of coolant over that time done by me but not a full clean.
So I can have another play on a 6700k and see how that goes again. What I'm looking for me now is a 5960x or a 8/10 core Broadwell when they come out for my main rig, but I will not be buying a new 5960x as they are not worth the price and going very cheap in the right places if you look around.
I'm not going to go down the IPC and high Ghz race anymore and go for more cores and live with it as it is and not look at benchmarks that are made up in a lot of cases, the future is more cores anyways as we saw from dual core to quad core and people cried foul back then too saying quad cores are not used but over time they were and now are standard really. In a few years 6-8-10 core systems will shine more on the mainstream apps and games. So rather build for the future than stick to 4 cores and hope the IPC and Ghz keep my FSX at good frame rates. I'm a power user anyways but was trying to save money and only trying to make FSX better at the time I tried a 6700k but realised not for me and rather have more horses that are slower than fewer that are faster.
Also FSX is a very CPU bound game and Memory bound, so I know what I'm talking about when I went 6700k and really fast memory, just it didn't live up to my expectations for the price, also SLI does not work on FSX or Xplane, so adding more graphics cards as you state is not an option either, as you keep repeating only thing that would make it better is more graphics cards at my resolution of 3440x1440, but you didn't realise or knew that FSX doesn't use SLI or Crossfire and other games I play are fast enough on my single 980ti at this resolution and my screen is only a 60hz screen anyways, all other games are way over 60hz/60fps that I play on full ultra settings in most cases. I see where you are coming from but clearly you don't know enough to advise people on upgrades for the applications or games they are trying to improve.
Will leave it at that mate and enjoy your system mate, I hope it gives you a good few years of fun as does my 2600k setup currently.

So the money saved is now going to my niece as a graduation gift and my nephew as a hand me down system rebuilt with a new case and GPU which makes me feel better than wasting it on a upgrade that was not here or there for me. So all worked out for the better in the end

and I will go for a X99 setup.