still cannot found the official confirm answer, my guess is either is 7750 or Radeon R7 260X.

from the slide below only tell GPU comparison with Intel but CPU side unknown:

This looks promising. I'm hoping to get this APU next year. I have some confidence on the APU at least the PS4 and Xbox1 is using AMD APU with unified shared memory. I think AMD won't screw up that easily....

So meaning no 28nm kaveri on desktop variant or slower production time?

AMD will never match Intel blow for blow in a conventional market. Intel simply have too much money. Their fabs alone will keep them ahead. Let alone their core architecture improvements every tick tock.

AMD realises this, so they decided to be a market disruptor. They see potential in changing the conventional market from a cpu/gpu market to the apu. This allows them to keep a lead because Intel will not like nor want a disruption in the market, especially after they have invested so much and have created such a huge lead. This will cause Intel to be slow to adopt the new technology, allowing AMD to have some breathing space while they create the technology and the market for the apu.

They have sacrificed the past 7 or so years for this and now they are at the culmination of all their efforts. They are pushing HSA and things like mantel. Let's see if their gamble pays off. Personally, I thought it would be difficult for them to convince the market to change the programming landscape to take advantage of apus, but the recent XBox and PS4 wins changed all that. Those were brilliant wins. It looks like the market will adopt the new programming standards to take advantage of apus sooner rather than later.

Now the question becomes, how much of a lead AMD can make and how Intel will adjust to the market trends. Execution for AMD is critical here. They need to ensure their new core apus come out timely and perform up to par without the huge power consumption issues of Bulldozer (having ditched Global Foundries, that is less of an issue now). They need to ensure HSA and Mantel take off. With the XBox and PS4, they have the leverage to push these forward. They cannot make any mistakes and they need to hammer home their lead. Intel has already shown they can make cpu and gpu on die and shown they can catch up with Qualcomm in only 2 generations. And they have the advantage of a 14nm fab.

I believe IRIS is still not on par with APUs, but they're now in the same ball park. It's frightening how Intel can catch up if they really want to.

Probably. And already, from reviews I read, they're already catching up in terms of power consumption and performance.

From Intel's perspective, there's no incentive for Intel to go into APU right now. They're probably gonna let AMD suffer through all the pains of creating a market for APUs alone and when the market is big enough, they'll just jump in and catch up within a couple of generations. No harm done to them. They'll just sit there and milk the current CPU market as kings of CPU while they wait.