Such as? I'm sure that video and picture editing are examples, but I've never edited either of these in my life.
I'm sure it will help overall performance, especially in the longer(ish) run, as it seems like they love adding it cool graphical effects to everyday stuff. I miss XP from that standpoint, it was ugly as hell.
How much improvement are we looking at from Skylake iGPU? I've read everything from -5% to up to 50%, but I haven't researched it that much..
Well, just look at OS X.
It's becoming more and more dependent on GPU power in order to provide cleaner, smoother and fancier graphics.
A more powerful GPU will ensure that OS X's GUI keeps running nice and smooth for a long time.
More GPU power also means a better experience with multiple monitors.
Meaning there's more power available for content once the added display has taken it's cut.
As I understand it Skylake will even be able to power three additional displays at 3840x2160, compared to Hashwells two.
With regards to video decoding, Skylake will provide a smoother experience while watching high resolution videos.
Also a more power efficient GPU means longer battery life.
The Skylake GPU will be able to do it's job faster while consuming less power and generating less heat than it's Haswell predecessor.
So I say wait.
-or don't, it's your own decision.
EDIT:
With regards to an actual total percentage increase in power over Haswell.
Errr, I've seen 40% getting thrown around a lot, but mainly that's been with regards to Broadwell vs Skylake and not even the Iris Pro variant.
So I have no clue but I think we won't be dissapointed if we expect at least a 25% all round raw performance increase.
-but that's a number I just pulled out of my hat, a hat worn by someone who knows F-all about anything really (me).