since 2011. I built this 2600k rig which I run at 4.6ghz 24x7 with 16gb ddr3 (was super cheap in 2011) I have USB 3 via my motherboard and PCI-e 2.0 x16 doesn't seems to be bottlenecking my 980TI.
I'm literally not missing out on anything 4+ years later.
Well, if you are bottlenecked by your graphics card, why are you complaining about lack of cpu progress? Since it overclocks fairly consistently to about the same speed as your cpu, and has about 20 to 30 pct better ipc, in a cpu limited game, there would be some improvement going to skylake.
In any case, desktop is not the focus. I have a SB work laptop from around that time (2011), and it runs quite hot and has really terrible battery life. I would say Skylake would be a big improvement there, giving better thermals and battery life for the same performance.
Honestly, not directed at you personally, but all these complaints about lack of gains in desktop Skylake are getting old. It is a mature product, and all the easy gains have been made already. People that are expecting the generation to generation gains anywhere close to what we used to see are simply unrealistic. My only criticism of intel is that they should bring out a mainstream hex core, since they dont seem to be able to wring much more out of the architecture.