Report: Intel Broadwell-K CPU to Launch in Q4 2014

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2. The 9 series chipsets will be compatible with Haswell, but the 8 series chipsets won't be compatible with Broadwell, even with a BIOS flash - unlike previous generations.

we don't know that yet. keep the rumors to a minimum.

It isn't like Intel has a particularly good track record with maintaining socket backwards compatibility and with Broadwell being intended mainly for the laptop market, rumors saying that it will require a new chipset due to changes in power specifications sound quite plausible.

If what Intel said about the Q1-2014 delay for mobile Broadwell not affecting Skylake's roadmap then we probably can still expect the LGA1151 Skylake in 2015, which could make Broadwell-K from Q4-2014 one of Intel's shortest-lived mainstream CPU lines. Makes me wonder why they would even bother. Intel's server roadmaps also indicate that everything is still on-schedule.

Looks like the 9x series chipsets will be mostly a Haswell-Refresh thing.

http://arstechnica.com/gadgets/2013/10/intels-next-generation-broadwell-cpus-delayed-due-to-yield-problems/