You may recall that the surprise star of our recent Core i7-6700K review was the Core i7-5775C, a chip based on the prior-generation Broadwell architecture with a novel configuration. It's derived from a mobile-focused product that incorporates 128MB of eDRAM on the package with the CPU. However, that eDRAM doesn't just act as a graphics cache. It's an L4 cache for the entire processor. Despite the fact that the extra cache makes the Core i7-5775C an excellent gaming chip, Intel has no plans to produce a socketed Skylake derivative with eDRAM for desktop systems.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips