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Intel plans a pair of new sockets for launch with its new processor architecture that succeeds Westmere, codenamed "Sandy Bridge", which are due for 2011. As part of its "tick-tock" product launch strategy, the company is currently transitioning between the 45 nm "tock" (Nehalem architecture), and 32 nm "tick" (Westmere architecture). In 2011, it will transition from the 32 nm "tick" (Westmere architecture), to the 32 nm "tock" (Sandy Bridge architecture). The company uses a "tick-tock" model of process development, where each processor architecture gets to be made in two successive manufacturing processes, while each process gets to build two succeeding architectures. It seems to have become clear that with Sandy Bridge, Intel will also switch to new socket designs, making existing motherboards obsolete then. Architecturally, Sandy Bridge will introduce new feature-sets that make the CPU more powerful, clock-to-clock, such as AVX - Advanced Vector Extensions, an evolution of the SSE instruction set, native AES engine which has been introduced with Westmere, and so on.
The present LGA-1156 package on which Intel builds value-through-performance processors including a bulk of mainstream processors, will be succeeded with the LGA-1155 package. Though similar, LGA-1155 and LGA-1156 are not inter-compatible, meaning that LGA-1155 processors will not work on existing LGA-1156 motherboards, and LGA-1156 processors will not work on LGA-1155 motherboards, either. For these processors, the arrangement of vital components is similar to the LGA-1156 package, except that every LGA-1155 processor - dual-core or quad-core - will feature an on-die display controller.
The pin count is drastically increased for two reasons: the processor will have a 256-bit wide memory interface (quad-channel DDR3):SThe next big platform to succeed the LGA-1366, which caters to processors in the upper performance-though-enthusiast segments is the "Patsburg" platform, succeeding the existing "Tylersburg" based Intel X58, 5000 series chipsets. Here, Intel will introduce a massive new socket, the LGA-2011. The pin count is drastically increased for two reasons: the processor will have a 256-bit wide memory interface (quad-channel DDR3), and the northbridge component (currently X58 PCH) will be integrated completely into the processor package, upping the pin count with the PCI-Express and DMI pins. The on-die PCI-Express 2.0 root-complex will give out 32 lanes for graphics (unlike 16 lanes on the LGA-1155), and a DMI link to the so-called "Intel X68" chipset, which is relegated to being a Platform Controller Hub, just like the P55, or P67. The X68 could have a feature-set similar to the P67.
More Details here: techPowerUp! News :: Intel Sandy Bridge to Introduce New Sockets, Chipsets, Reorganize Platform Further
LGA 1366-> LGA 1156-> LGA 1155-> LGA 2011:S, its really annoying to see every end of the year Intel introducing new sockets to the market and making the existing looks obsolete (not 100% though), if not for all but definitely would affect enthusiast comm pushing them to upgrade the mobo (to new socket) completely or to buy a high-end procy for their existing socket. This is not fair and their stupid tick-tock strategy sucks. On the other hand AMD doing really good job keeping the old and new sockets compatible for new procys to make the upgradation easier for all
what u think? i'm sure advancements is much necessary for future tech in computing but i feel this is rather a perfect business.