All's Well That Haswell?
 

Here are the first slides detailing Haswell, Intel's next generation processor architecture that succeeds Sandy Bridge and Ivy Bridge. Intel follows a "tick-tock" product development model. Every year, Intel's product lineup sees either of the two. A "tock" brings in a new x86 architecture, a "tick" miniaturizes it to a newer silicon fabrication process. For example, Sandy Bridge is Intel's latest architecture, and is based on the 32 nm fab process. Ivy Bridge is a miniaturization of Sandy Bridge to 22 nm. Likewise, Haswell will be a brand new architecture, it will use the 22 nm fab process cemented by Ivy Bridge.

If all goes well with Intel's 22 nm process, Haswell is scheduled for Q2 2013. 2012 (Q2 onwards) will be led by Ivy Bridge. But then here's a "shocker": Haswell's desktop version will use a brand new socket, LGA1150, and will be incompatible with LGA1155. This is because of drastic changes in the pin map of the package. Sandy Bridge and Ivy Bridge share the LGA1155 socket, and will hence, have kept the socket alive for over 2 years. A major change with the component arrangement in the platform that is affecting Haswell's pin map is that Haswell will have a higher bandwidth chipset bus, rearranged PCIe pins (with FDI pins), rearranged power pins, and miscellaneous pins. It does away with a separate power domain for the integrated graphics controller.

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