BAD HARDWARE WEEK

Based on the 14-nanometer "Broadwell" microarchitecture, Intel says that the new chips are "purpose-built for the next generation of compute devices." Manufacturers will have 10 new low-power, 15-watt models and 4 new 28-watt variants to choose from.
The dual-core chips have 1.9 billion transistors, a 35% increase over the prior generation, and a 133 mm2 footprint that is approximately 50mm2 smaller than its predecessors. The 15W chips have data rates up to 3.1 GHz while 28W i7 cores hit up to 3.4 GHz. The Broadwell chips have L3 caches ranging from 2 to 4 Mbytes, roughly the same as Haswell.

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99% BAD HARDWARE WEEK: If you are looking for perfomance, well, wait the Skylake this year. You know, DDR4 support and things like that will drive overall perfomace usual 30% up.
OMG, Broadwell uses eDRAM for worse performance but cheapo, INITIALLY low yield 14nm process !!
You can see it as a smaller chip on the Broadwell interposer , picture above. 
Moving in 2015, Intel will have not one but two different desktop platforms, the Broadwell “Crescent Bay” platform which will make use of the Wild Cat point 9-Series chipset and the Skylake “Sky Bay” platform which will make use of the Sunrise point chipset.
Both platforms will seem to co-exist and platform details for Skylake have already been leaked out. The Intel Skylake platform will make use of a new x86 core architecture leveraging the IPC performance on a 14nm die node. Compared to Broadwell, which makes use of the Haswell architecture and a 14nm die shrink, the new architecture will deliver improved graphics in the form of GT4e.

Now, what for are all those Skylake performance bulid ups ? Only for resources hungry Windows 10 hogs :))

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Broadwell seems like only an ultrabox platform. Better wait for the Skylake. Please note Skylake LGA1151 socket.