Even if Intel were to level the gap,their drivers are still worse than Nvidia or AMD anyway.
Plus,looking at how massive the 22NM HD5000 IGP is(as big as the 28NM Bonaire XT GPU in the HD7790),the top models will be expensive especially with the need for a large L4 cache die,and the fact they will be using a new and expensive process node. Its the low power consumption of Intel CPUs(and the platforms themselves),and their process node tech,which have somewhat hidden the fact that Intel IGPs,are well not that great.
The fact that Intel is opening up limited 14NM volume for other companies underlies the fact that it probably costs more than Intel expected.
Once you go down to the cheaper pricing tiers where the A10 APUs exist,its going to be more of the same as now,ie,faster CPU and worse IGP against slower CPU and faster IGP. At those pricing levels,Intel is only really increasing GPU performance since AMD is,but for the vast majority of their customer base,the Core i3 is not really used for gaming anyway,and is artificially gimped compared to the Core i5. Why?? Because whether the Core i3 was 20% faster or slower it would not matter for all the businesses,schools,etc which buy them. Its their volume which is the main key. Plus Intel maximises their profit margins by selling as small a chip as they can at that price.
They are kings of making product tiers.
Moreover,with the low ASP for the BT chips and the $1 billion subsidies they are doing next year for them,expect them to maximise on the margins of more expensive chips. If anything,BT and the ULV versions of Broadwell are their most important chips,followed by the special server chips. The rest are just a secondary concern to them if you look at what they are doing as a company.
If you want a performance CPU,they want you to buy Core i5 CPUs. If you want to buy a better IGP,spend more on the Core i5 and ULV Core i3 models which have with a large price premium.
Even the HD5000 was developed due to a need by Apple for a thinner premium laptops. In fact we need to thank them for Intel actually putting in the effort TBH!
Moreover,as a general purpose computer architecture,GCN and Kepler are far above what Intel has to offer,and by the time Broadwell ships any massive volume we will start to see revisions of both of these. Even in the compute card area,Intel is offering X86 based cores,not compute based GPUs.