So in order to have an unlocked processor, you have to pay an even bigger intel gpu tax? Haha suckers that's what you get. I wonder how many will be boasting and bragging about how they paid even more money for a gpu that will not get used. I predict all sorts of rationalizations for it, such as "The eDRAM is actually kind of useful" bla bla bla.
Uh, no. Skylake-S unlocked is 4+2 config, and if you want an unlocked processor w/o GPU and even more cores, cache, and memory bandwidth, the HEDT platform is available.
And, for $389 or so (not that much more than a 4790K), you can get 50% more cores than you can get with a 4790K, more PCIe lanes, more bandwidth, and I'd bet you that most 5820Ks with proper cooling can make it to ~4GHz.
The BDW-C is basically a Broadwell-H stuck onto an LGA package. If the demand for this product is meaningful, you will see future "-C" chips. If demand is tepid, expect these kinds of chips (unlocked CPU w/ big GPU + eDRAM) to be killed off come Skylake or Cannonlake.